CN113332541A

CN113332541A - Hand-held speed control device for hypodermic injection

Info

Publication number: CN113332541A
Application number: CN202110553636.9A
Authority: CN
Inventors: 郑鸿; 刘权兴; 戴纪刚; 卢潇; 张姣; 于莎莎
Original assignee: Second Affiliated Hospital Army Medical University
Current assignee: Second Affiliated Hospital Army Medical University
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-09-03
Anticipated expiration: 2041-05-20
Also published as: CN113332541B

Abstract

The invention provides a handheld speed control device for hypodermic injection, which relates to the technical field of medical equipment and aims to solve the problems that after the existing handheld speed control device for hypodermic injection is used, a needle can remain medicines and is easily polluted by the outside, the connection mode of the needle is complex and is inconvenient to disassemble and clean independently, the cavity space of a sleeve of the device is small, the cleaning is not thorough when the inside of the sleeve is cleaned, and the leakage is easy to occur to a patient when the patient carries the device after the medicines are stored in the device; the base top is arc groove structure, and is equipped with the sleeve pipe in the base top recess. According to the injection syringe, when the sliding tube is connected with the butt joint block, the sliding tube is clamped with the butt joint block through the clamping block, the inserting rod slides backwards, and the stopping block is slidably inserted into the through hole, so that the injection syringe can be sealed, the cylindrical cavity of the injection syringe is effectively prevented from being polluted, meanwhile, the sealing performance is good, and the injection syringe is convenient for a patient to carry.

Description

Hand-held speed control device for hypodermic injection

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a handheld speed control device for hypodermic injection.

Background

Subcutaneous injection refers to the injection of a medicinal fluid into the subcutaneous tissue. The common injection sites are the upper arm and the lateral side of the thigh. For example, insulin is easily destroyed by digestive enzymes in the gastrointestinal tract by oral administration, and loses its effect, and is rapidly absorbed by subcutaneous injection.

For example, application No.: the invention discloses a CN202010826484.0 speed control device for hand-held hypodermic injection, which relates to the technical field of medical equipment, and specifically relates to a speed control device for hand-held hypodermic injection, wherein the main body of the device is a rectangular device, a touch screen is arranged on the main body of the device, an equipment switch is arranged beside the touch screen, an arc-shaped injector fixing groove is arranged on the bottom surface of the main body of the device, a sensor is arranged at the rear end of the arc-shaped injector fixing groove, two fixing snap rings with openings are further arranged on the injector fixing groove, a lead screw groove is arranged in the injector fixing groove, and a needle fixing area is arranged at the front end of the injector fixing groove. The invention can accurately control and intelligently manage the injection speed and dosage based on the hypodermic injection.

Current hand-held type speed control device for hypodermic injection is using the back, and the medicine can be remained to the syringe needle, receives external pollution easily, and syringe needle connected mode is complicated, and is inconvenient to its dismantlement washing alone, and the sheathed tube cavity space of device is less moreover, when wasing intraduct, leads to wasing not thoroughly enough, and the device is inside to store behind the medicine simultaneously, and the patient takes place to leak when carrying easily.

Disclosure of Invention

In order to solve the technical problems, the invention provides a handheld speed control device for hypodermic injection, which aims to solve the problems that after the existing handheld speed control device for hypodermic injection is used, a needle can remain medicines and is easily polluted by the outside, the needle is complicated in connection mode and is inconvenient to disassemble and clean independently, the cavity space of a sleeve of the device is small, the cleaning is not thorough when the inside of the sleeve is cleaned, and a patient is easy to leak when the device is carried after medicines are stored in the device.

The invention relates to a handheld speed control device for subcutaneous injection, which has the purpose and the effect and is achieved by the following specific technical means:

a hand-held speed control device for subcutaneous injection comprises a base;

the top of the base is of an arc groove structure, and a sleeve is arranged in the groove at the top of the base;

the base comprises a first shield, a second shield, a support frame and an installation cylinder, the first shield and the second shield are symmetrically arranged at the top of the base, the first shield is connected with the sleeve, the installation cylinder is arranged at the rear part of the base, and the installation cylinder is fixedly connected with the base through the support frame;

the sleeve is provided with a knob, the knob is arranged on the left side of the sleeve, the front end of the sleeve is provided with a needle head, and the needle head is connected with the sleeve through a locking assembly;

the injection device is characterized in that an injection medicine tube is arranged in the sleeve, a push rod is arranged at the rear part of the injection medicine tube and is positioned in the first protective cover and the second protective cover, a driving mechanism is arranged at the rear end of the push rod, and the driving mechanism is arranged in the installation barrel.

Further, the sleeve pipe includes mounting hole and spread groove, and the sleeve pipe is the cylindricality cavity structure, and sleeve pipe inner peripheral surface rear end is equipped with the spread groove, and the mounting hole has been seted up on the sleeve pipe wall left side, and the knob sets up in the mounting hole.

Further, the knob includes holding ring, draw-in groove, bull stick and butt joint piece, and the holding ring is the loop configuration, and the holding ring rotates to be installed in the mounting hole, and two draw-in grooves have been seted up to the holding ring inner peripheral surface, and two draw-in grooves are the symmetric mode and distribute to the knob passes through draw-in groove and holding ring looks joint, and holding ring one end is equipped with the bull stick, and the bull stick is for global being equipped with the butt joint piece, and the prism chamfer has been seted up to the butt joint piece tip.

Further, the syringe needle includes connecting pipe and mount pad, and syringe needle position column structure, and the syringe needle passes through the mode of embedding to be installed in the connecting pipe, and connecting pipe one side is equipped with the mount pad, and mount pad fixed mounting is in the sleeve pipe front end.

Furthermore, the locking assembly comprises a fixing ring, a hook and a limiting ring;

the fixing ring is sleeved on the connecting pipe, and the connecting pipe is provided with three sliding chutes which are distributed in an annular array mode;

the hook is in an L-shaped structure at three positions, the hook is matched with the chute in position, one end of the hook is provided with an insertion block, and the end part of the insertion block is provided with a tension spring;

the inner diameter of the limiting ring is matched with the outer diameter of the needle head, three limiting grooves are formed in the limiting ring, and the positions of the limiting grooves are matched with the hooks.

Furthermore, the hook is connected with the sliding groove in a sliding mode through the insertion block, and the end portion of the extension spring is connected with the sliding groove.

Furthermore, when the limiting ring is connected with the hook, the U-shaped end part of the hook is clamped with the limiting groove.

Furthermore, the driving mechanism comprises a screw rod, a gear, a turbine shaft and a motor, the gear is installed in the installation barrel through a support, the gear is rotatably connected with the support through a bearing, the screw rod is transversely distributed in the installation barrel, the front end of the screw rod is connected with the push rod, the screw rod is in sliding connection with the gear in a threaded mode, the motor is fixedly installed in the installation barrel, the turbine shaft is arranged on a rotating shaft of the motor and located below the gear, and the turbine shaft is meshed with the gear.

Furthermore, the injection medicine tube comprises a connecting seat, a sliding tube, a baffle plate and a piston, the injection medicine tube is of a combined type cavity structure consisting of a front conical cavity and a rear cylindrical cavity, the baffle plate is arranged at the joint of the conical cavity and the cylindrical cavity, the connecting seat is arranged at the rear end of the peripheral surface of the injection medicine tube, the injection medicine tube is clamped with the connecting groove through the connecting seat, the piston is arranged in the cylindrical cavity of the injection medicine tube and is in sliding connection with the injection medicine tube, the piston is in supporting connection with the push rod, the sliding tube penetrates through the side wall of the front end of the conical cavity of the injection medicine tube, and the sliding tube is in sliding connection with the injection medicine tube;

the front end of the sliding tube is provided with a clamping block, the inner tube is fixedly arranged in a conical cavity of the injection drug tube, the sliding tube is connected with the inner tube in a sliding manner, the inserted rod is arranged at the rear end of the sliding tube and penetrates through the inner tube in a sliding manner, the end part of the inserted rod is provided with a stopping block, the inserted rod is sleeved with a compression spring, and the compression spring is supported between the sliding tube and the inner tube;

the through hole is formed in the center of the baffle, the cylindrical cavity of the injection medicine tube is communicated with the conical cavity of the injection medicine tube through the through hole, and the caliber of the through hole is matched with the stop block.

Furthermore, when the sliding pipe is connected with the butt joint block, the sliding pipe is clamped with the butt joint block through the clamping block, the inserting rod slides backwards, and the stop block is inserted into the through hole in a sliding mode.

Compared with the prior art, the invention has the following beneficial effects:

1. the knob is connected with the positioning ring quickly and stably, the connection structure is simple, the knob is convenient to disassemble, and the interior of the sleeve is convenient to clean through the mounting hole;

2. the limiting ring can limit and fix the needle head, so that the needle head is fixedly arranged in the connecting pipe, the hook is connected with the sliding groove in a sliding mode through the inserting block, the end part of the extension spring is connected with the sliding groove, and when the limiting ring and the hook are in a connected state, the U-shaped end part of the hook is clamped with the limiting groove;

3. this device is through rotatory knob, makes slide tube and butt joint piece be connected state, and the slide tube passes through fixture block and butt joint piece looks joint, and the inserted bar backward slip, and the dog slips in the through-hole, can play the sealing effect to the injection pencil, effectively prevents to receive of injection pencil cylindricality cavity and pollutes, and the closure is good simultaneously, makes things convenient for the patient to carry.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is a schematic view of the rotational angle structure drawn from fig. 1.

Fig. 3 is a schematic view of the structure of the injection cartridge of the present invention.

Fig. 4 is a schematic structural view of the cross-sectional view from fig. 3.

Fig. 5 is a schematic diagram of the structure of the slide and the baffle in an explosive state according to the invention.

Fig. 6 is a structural schematic diagram of the sleeve and the knob in an exploded state according to the present invention.

Fig. 7 is a schematic view of the locking assembly and needle configuration of the present invention.

Fig. 8 is a schematic view of the locking assembly and needle of the present invention in an exploded configuration.

Fig. 9 is an enlarged view of the portion a of fig. 8 according to the present invention.

Fig. 10 is a cross-sectional view structure diagram of the support frame and the mounting barrel of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a base; 101. a first shield; 102. a second shield; 103. a support frame; 104. mounting the cylinder; 2. a sleeve; 201. mounting holes; 202. connecting grooves; 3. a knob; 301. a positioning ring; 302. a card slot; 303. a rotating rod; 304. a butt joint block; 4. a needle head; 401. a connecting pipe; 402. a mounting seat; 5. a locking assembly; 501. a fixing ring; 5011. a chute; 502. hooking; 5021. inserting a block; 5022. an extension spring; 503. a limiting ring; 5031. a limiting groove; 6. a drive mechanism; 601. a screw rod; 602. a gear; 603. a turbine shaft; 604. a motor; 7. a push rod; 8. injecting a medicine tube; 801. a connecting seat; 802. a slide pipe; 8021. a clamping block; 8022. an inner tube; 8023. inserting a rod; 8024. a stopper; 8025. a compression spring; 803. a baffle plate; 8031. a through hole; 804. a piston.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 10:

the invention provides a hand-held speed control device for hypodermic injection, which comprises a base 1;

the top of the base 1 is of an arc groove structure, a sleeve 2 is arranged in a groove in the top of the base 1, the sleeve 2 comprises a mounting hole 201 and a connecting groove 202, the sleeve 2 is of a cylindrical cavity structure, the connecting groove 202 is arranged at the rear end of the inner circumferential surface of the sleeve 2, the mounting hole 201 is formed in the left side of the wall of the sleeve 2, and the knob 3 is arranged in the mounting hole 201;

the base 1 comprises a first shield 101, a second shield 102, a support frame 103 and an installation cylinder 104, wherein the first shield 101 and the second shield 102 are symmetrically arranged at the top of the base 1, the first shield 101 is connected with the sleeve 2, the installation cylinder 104 is arranged at the rear part of the base 1, and the installation cylinder 104 is fixedly connected with the base 1 through the support frame 103;

the sleeve 2 is provided with a knob 3, the knob 3 is arranged on the left side of the sleeve 2, the front end of the sleeve 2 is provided with a needle 4, the needle 4 is connected with the sleeve 2 through a locking assembly 5, the needle 4 comprises a connecting pipe 401 and a mounting seat 402, the needle 4 is of a cylindrical structure and is mounted in the connecting pipe 401 in an embedding mode, the mounting seat 402 is arranged on one side of the connecting pipe 401, and the mounting seat 402 is fixedly mounted at the front end of the sleeve 2;

an injection medicine tube 8 is arranged in the sleeve 2, a push rod 7 is arranged at the rear part of the injection medicine tube 8, the push rod 7 is positioned in the first protective cover 101 and the second protective cover 102, a driving mechanism 6 is arranged at the rear end of the push rod 7, and the driving mechanism 6 is arranged in the mounting cylinder 104; the driving mechanism 6 comprises a screw rod 601, a gear 602, a turbine shaft 603 and a motor 604, the gear 602 is mounted in the mounting cylinder 104 through a bracket, the gear 602 is rotatably connected with the bracket through a bearing, the screw rod 601 is transversely distributed in the mounting cylinder 104, the front end of the screw rod 601 is connected with the push rod 7, the screw rod 601 is slidably connected with the gear 602 through a thread, the motor 604 is fixedly mounted in the mounting cylinder 104, the turbine shaft 603 is arranged on a rotating shaft of the motor 604, the turbine shaft 603 is positioned below the gear 602, and the turbine shaft 603 is meshed with the gear 602.

Wherein, the knob 3 includes holding ring 301, draw-in groove 302, bull stick 303 and butt joint piece 304, holding ring 301 is the loop configuration, and holding ring 301 rotates and installs in mounting hole 201, two draw-in grooves 302 have been seted up to holding ring 301 inner peripheral surface, and two draw-in grooves 302 are the symmetric mode and distribute, and knob 3 passes through draw-in groove 302 and holding ring 301 looks joint, holding ring 301 one end is equipped with bull stick 303, and bull stick 303 is equipped with butt joint piece 304 for global, and the prism chamfer has been seted up to butt joint piece 304 tip, knob 3 can be connected with holding ring 301 fast and stable, its connection structure is simple, be convenient for dismantle knob 3.

The locking assembly 5 comprises a fixing ring 501, a hook 502 and a limiting ring 503;

the fixing ring 501 is sleeved on the connecting pipe 401, three sliding grooves 5011 are formed in the connecting pipe 401, and the three sliding grooves 5011 are distributed in an annular array mode;

the hook 502 is in an L-shaped structure at three positions, the hook 502 is matched with the chute 5011 in position, one end of the hook 502 is provided with an insert 5021, and the end of the insert 5021 is provided with a tension spring 5022;

the inner diameter of the limiting ring 503 is matched with the outer diameter of the needle 4, three limiting grooves 5031 are formed in the limiting ring 503, and the positions of the limiting grooves 5031 are matched with the hooks 502;

the limit ring 503 can limit and fix the needle 4, so that the needle 4 is fixedly installed in the connecting pipe 401, the hook 502 is slidably connected with the sliding slot 5011 through the plug 5021, the end of the extension spring 5022 is connected with the sliding slot 5011, and when the limit ring 503 is connected with the hook 502, the U-shaped end of the hook 502 is clamped with the limit slot 5031, so that the connection between the limit ring 503 and the hook 502 is simple, and the limit ring 503 is convenient to install and disassemble.

The injection medicine tube 8 comprises a connecting seat 801, a sliding tube 802, a baffle 803 and a piston 804, the injection medicine tube 8 is of a composite cavity structure consisting of a front conical cavity and a rear cylindrical cavity, the baffle 803 is arranged at the joint of the conical cavity and the cylindrical cavity, the connecting seat 801 is arranged at the rear end of the outer peripheral surface of the injection medicine tube 8, the injection medicine tube 8 is clamped with the connecting groove 202 through the connecting seat 801, the piston 804 is arranged in the cylindrical cavity of the injection medicine tube 8, the piston 804 is in sliding connection with the injection medicine tube 8, the piston 804 is in supporting connection with the push rod 7, the sliding tube 802 penetrates through the side wall of the front end of the conical cavity of the injection medicine tube 8, and the sliding tube 802 is in sliding connection with the injection medicine tube 8;

a slide tube 802, a fixture block 8021 is arranged at the front end of the slide tube 802, an inner tube 8022 is fixedly arranged in a conical cavity of the injection medicine tube 8, the slide tube 802 is connected with the inner tube 8022 in a sliding manner, an insertion rod 8023 is arranged at the rear end of the slide tube 802, the insertion rod 8023 penetrates through the inner tube 8022 in a sliding manner, a stop block 8024 is arranged at the end part of the insertion rod 8023, a compression spring 8025 is sleeved on the insertion rod 8023, and the compression spring 8025 is supported between the slide tube 802 and the inner tube 8022;

the baffle 803, the through hole 8031 is set up in the central position of the baffle 803, and the cylindrical cavity of the injection medicine tube 8 communicates with conical cavity of the injection medicine tube 8 through the through hole 8031, and the aperture of the through hole 8031 matches with stopper 8024;

according to the device, the sliding tube 802 and the butt joint block 304 are in a connection state by rotating the knob 3, the sliding tube 802 is clamped with the butt joint block 304 through the clamping block 8021, the inserting rod 8023 slides backwards, and the stop block 8024 is slidably inserted in the through hole 8031, so that the sealing effect on the injection medicine tube 8 can be achieved.

In another embodiment, a sliding rod is arranged at the center of one side face of the plug 5021 and the sliding slot 5011, the sliding rod is positioned in the extension spring 5022, and the sliding rod is in sliding connection with the tail of the plug 5021, so that the plug 5021 slides in the sliding slot 5011 more stably, the extension spring 5022 can be always positioned at the center of the sliding slot 5011, and the running reliability of the spring is improved.

The specific use mode and function of the embodiment are as follows:

in the using process, firstly, the positioning ring 301 is rotatably installed in the installation hole 201, two clamping grooves 302 are formed in the inner circumferential surface of the positioning ring 301, the knob 3 is clamped with the positioning ring 301 through the clamping grooves 302, and the knob 3 can be quickly and stably connected with the positioning ring 301, so that the connection structure is simple, the knob 3 is convenient to disassemble, and the inside of the sleeve 2 is convenient to clean through the installation hole 201;

secondly, the limit ring 503 can limit and fix the needle 4, so that the needle 4 is fixedly arranged in the connecting pipe 401, meanwhile, the hook 502 is in sliding connection with the sliding groove 5011 through the insert 5021, the end part of the extension spring 5022 is connected with the sliding groove 5011, when the limit ring 503 is in a connection state with the hook 502, the U-shaped end part of the hook 502 is clamped with the limit groove 5031, therefore, the connection mode of the limit ring 503 and the hook 502 is simple, the limit ring 503 is convenient to install and disassemble, the needle 4 can be independently cleaned and stored, the needle 4 is prevented from being left with medicine, and meanwhile, the needle 4 is effectively prevented from being polluted by the outside;

in addition, this device makes slide pipe 802 and butt joint piece 304 be connected state through rotatory knob 3, and slide pipe 802 passes through fixture block 8021 and butt joint piece 304 looks joint, and inserted bar 8023 slides backward, and dog 8024 slides and inserts in through-hole 8031, can play the sealing effect to injection medicine pipe 8, effectively prevents to inject the pollution of 8 cylindricality cavitys of medicine pipe, and the closure is good simultaneously, makes things convenient for the patient to carry.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A hand-held speed control device for subcutaneous injection, characterized by: a hand-held speed control device for subcutaneous injection comprises a base;

2. The handheld speed control device for hypodermic injection as claimed in claim 1, wherein said sleeve comprises a mounting hole and a connecting groove, the sleeve has a cylindrical cavity structure, the connecting groove is formed at the rear end of the inner circumferential surface of the sleeve, the mounting hole is formed at the left side of the wall of the sleeve, and the knob is disposed in the mounting hole.

3. The hand-held speed control device for hypodermic injection as claimed in claim 2, wherein said knob comprises a positioning ring, a slot, a rotating rod and a butt-joint block, wherein the positioning ring is of a ring structure, the positioning ring is rotatably mounted in the mounting hole, two slots are formed on the inner peripheral surface of the positioning ring, the two slots are symmetrically distributed, the knob is connected with the positioning ring through the slots, the rotating rod is arranged at one end of the positioning ring, the butt-joint block is arranged on the peripheral surface of the rotating rod, and a prismatic chamfer is formed at the end of the butt-joint block.

4. The hand-held hypodermic speed control device of claim 1 wherein the needle comprises a connecting tube and a mounting seat, the needle is of a cylindrical configuration and is mounted in the connecting tube by means of an insert, the mounting seat is provided on one side of the connecting tube and is fixedly mounted to the front end of the cannula.

5. The hand-held hypodermic speed control device of claim 1 wherein said locking assembly comprises a retaining ring, a hook and a stop ring;

6. A hand-held hypodermic speed control device as claimed in claim 5, wherein said hook is slidably connected to said channel by an insert and the end of said extension spring is connected to said channel.

7. The handheld speed control device for hypodermic injection as claimed in claim 5, wherein the U-shaped end of the hook engages the retaining groove when the retaining ring is engaged with the hook.

8. The hand-held speed control device for hypodermic injection as claimed in claim 1, wherein said driving mechanism comprises a screw, a gear, a turbine shaft and a motor, the gear is mounted in the mounting cylinder by a bracket, and the gear is rotatably connected with the bracket by a bearing, the screw is transversely distributed in the mounting cylinder, and the front end of the screw is connected with the push rod, and the screw is slidably connected with the gear by means of a thread, the motor is fixedly mounted in the mounting cylinder, and the turbine shaft is arranged on the rotating shaft of the motor, the turbine shaft is located below the gear, and the turbine shaft is engaged with the gear.

9. The hand-held speed control device for hypodermic injection according to claim 1, wherein the syringe comprises a connecting seat, a sliding tube, a baffle plate, and a piston, the syringe is a composite cavity structure consisting of a front conical cavity and a rear cylindrical cavity, the baffle plate is disposed at the junction of the conical cavity and the cylindrical cavity, the connecting seat is disposed at the rear end of the outer peripheral surface of the syringe, the syringe is clamped with the connecting groove through the connecting seat, the piston is disposed in the cylindrical cavity of the syringe, the piston is slidably connected with the syringe, the piston is in supporting connection with the push rod, the sliding tube penetrates through the side wall of the front end of the conical cavity of the syringe, and the sliding tube is slidably connected with the syringe;

10. The handheld speed control device for hypodermic injection as claimed in claim 9, wherein when said slide tube is connected to said docking block, said slide tube is engaged with said docking block by said engaging member, and said plunger slides backward, said engaging member being slidably inserted into said through hole.