CN115137891A - Intrathecal combination medicine continuous extraction injection device - Google Patents

Abstract

The invention discloses a continuous extraction and injection device for intrathecal combination medication, comprising a worktable, a support leg is welded on the bottom surface of the worktable, and a disc one and a disc two are arranged on the upper side of the worktable, and the disc one and the disc two are arranged on the upper side of the worktable. There are pillars fixedly connected between the disc 1 and the worktable. There are three supporting legs and they are evenly distributed on the bottom surface of the worktable. At least one extraction cylinder and at least three liquid injection cylinders are penetratingly fixed between the disc 1 and the worktable, and one side of the bottom end of the liquid injection cylinder is connected with a liquid replenishing pipe, and the inner wall of the liquid replenishing pipe is equipped with a one-way valve. The invention has reasonable design, stable operation of the device and strong applicability. During operation, the extraction of cerebrospinal fluid and drug injection are linked together, thereby greatly reducing the risk of infection during puncture and the risk of nerve damage due to shaking of the steel needle, providing safe and efficient treatment for patients. certain guarantee.

Description

A continuous extraction and injection device for intrathecal combined medication

technical field

The invention relates to the technical field of medical injection aids, in particular to a continuous extraction and injection device for intrathecal combined medication.

Background technique

In the actual application of intrathecal injection therapy, it is necessary to prepare several drugs and then perform intrathecal injection one by one. During the operation, the doctor needs to fix the needle tip inserted into the tapered hole with one hand, and change the syringe several times with the other hand. The process is complicated and the risk of microbial contamination is high, and a more convenient and safe intrathecal injection mode is urgently needed in clinical practice. Therefore, it is necessary to study a continuous extraction and injection device for intrathecal combination medication.

SUMMARY OF THE INVENTION

The purpose of the present invention is to propose a continuous extraction and injection device for intrathecal combination medication in order to solve the problem in the existing technology with the risk of contamination.

In order to achieve the above object, the present invention adopts the following technical solutions:

A continuous extraction and injection device for intrathecal combined medication, comprising a worktable, a support leg is welded on the bottom surface of the worktable, a disc 1 and a disc 2 are arranged on the upper side of the worktable, and a disc 1 and a disc 2 are located between the disc 1 and the disc 2. There are pillars fixedly connected between the first disk and the worktable. There are three supporting legs and they are evenly distributed on the bottom surface of the worktable. There are three pillars and they are evenly distributed on the bottom surface and the top surface of the disk one. At least one extraction cylinder and at least three liquid injection cylinders are fixed through and fixed between the liquid injection cylinder and one side of the bottom end of the liquid injection cylinder. A sealing cover is also added, the output end of the extraction cylinder and the injection cylinder are also connected with an extraction and injection assembly for the diversion of the extracted material and the injection material, and the top sides of the extraction cylinder and the injection cylinder are both slidably sealed and connected with a suction pressure. A piston head is fixed on one end of the rod and the pumping rod, and a pressure block is fixed on the top side of the extraction cylinder and the liquid injection cylinder through screws. The driven gear, the top surface of the second disk is also fixed with a lifting handle, the side walls of the first disk and the second disk are provided with arc-shaped grooves, and the inner bottom surface and the top surface of the arc-shaped groove are provided with rolling grooves, so A magnetic connecting block is also embedded in the side wall of the arc-shaped groove, and a driving component for driving the driven gear to rotate is also installed in the arc-shaped groove at a rolling limit.

Preferably, the extraction and injection assembly includes a puncture needle steel needle body, a bidirectional guide tube is fixed at the input end of the puncture needle steel needle body, and a manual valve 1 and a manual valve 2 are respectively installed on the upper and lower inner walls of the bidirectional guide tube. The bottom end of the conducting pipe is also connected with an elbow, and the other end of the elbow is also connected with a multi-way joint, and a material injection hose is connected between the liquid injection cylinder and the interface of the multi-way joint, and the two-way conduction A suction hose is connected through the upper side of the pipe and the extraction cylinder, and an exhaust valve is also installed on one side of the two-way guide pipe. side, the length of the injection hose and the extraction hose is 30-40 cm and the diameter is 4mm.

Preferably, the drive assembly includes an arc-shaped plate, the inner walls of the upper and lower sides of the arc-shaped plate are fixed with sliding rods, the sliding rods are all slidably connected in the arc-shaped grooves, the upper and lower sides of the sliding rod are equipped with balls, and the balls are embedded Installed in the rolling groove, an electromagnetic block is fixed at one end of the sliding rod away from the arc-shaped plate, and a bracket is also fixed in the middle of the inner side of the arc-shaped plate. The top surface of the bracket is fixed with a multi-stage motor by screws. A gear, a transposition handle is also fixed on one side of the arc-shaped plate, and a control part is installed on the transposition handle.

Preferably, the control element includes a control button for controlling the rotation of the multi-level motor, and the rotation rate of the multi-level motor can be adjusted in multiple levels through the control button, and the control element also includes a switch key for controlling the power connection and power off of the electromagnetic block.

Preferably, there are two rolling grooves and two balls, and the center of the driving gear and the driven gear are on the same horizontal plane, and the driving gear meshes with the driven gear when it rotates to one side of the driven gear.

Preferably, the bottom end of the liquid injection cylinder is arranged in a conical shape, and the shape of the piston head matches the shape of the inner wall of the bottom end of the liquid injection cylinder.

Preferably, the screw rods are all drivingly connected between the first disk and the second disk, and the pressing blocks are arranged on the side away from the center of the second disk, and the number of the magnetic connection blocks is the same as that of the extraction cylinder and the liquid injection cylinder The sum of the numbers is the same, and a plurality of magnetic connection blocks are evenly distributed on the inner side of the side wall of the arc-shaped slot.

Compared with the prior art, the present invention provides an intrathecal combined medication continuous extraction and injection device, which has the following beneficial effects:

1. The present invention has a reasonable design, stable operation of the device and strong applicability. During operation, the extraction of cerebrospinal fluid and drug injection are linked together, thereby greatly reducing the risk of infection during puncture and the risk of nerve damage due to shaking of the steel needle, which is safe and efficient for patients. Treatment provides a certain guarantee;

2. In the present invention, the mixed medicine is pressed into the liquid injection cylinder through the rehydration tube before use, and the pumping rod is slowly pulled up by means of the driving assembly when the medicine is injected, and the device is placed next to the patient after the injection of various medicines In the appropriate treatment position, the puncture needle steel needle body is inserted into the patient's treatment point, and then the cerebrospinal fluid extraction and drug injection are completed with the help of the driving component, so as to realize the linkage operation of extraction and drug injection, thereby greatly improving the efficiency of treatment and reducing the cost of drug injection. the risk of infection in the patient;

3. In the present invention, the puncture needle steel needle body is inserted into the patient's taper hole when the injection is extracted. At this time, the manual valve is opened and the second manual valve is closed. At this time, the drive assembly drives the suction rod in the extraction cylinder to move up, and the patient The cerebrospinal fluid is sucked into the extraction cylinder under the action of negative pressure. After the extraction is completed, the manual valve is closed and the manual valve 2 is opened. Then, according to the treatment plan, various drugs are injected into the patient's cerebrospinal fluid in turn with the help of the driving component, so as to realize the scientific treatment of the patient. , thus providing a certain guarantee for the efficient and safe treatment of patients;

4. In the present invention, when extracting cerebrospinal fluid and injecting drugs, the transposition handle is pulled to move the drive assembly to a suitable position, and then the electromagnetic block is electrically connected to the sexual connection block by pressing the control member. Magnetically fixed connection, and then according to the rate of drug extraction or injection Adjust the working level of the multi-level motor, so as to realize the constant-speed extraction of cerebrospinal fluid and the constant-speed injection of drugs. After a single item is completed, the electromagnetic block is powered off by pressing the control part, and then the drive assembly is moved to the next position and then proceed to the next step. In the treatment operation, the injection and extraction rates are easily adjusted, and the extraction and injection are stable, thus ensuring the comfort of the patient during treatment.

Description of drawings

Fig. 1 is the front structure schematic diagram of the present invention;

Fig. 2 is the front view of liquid injection cylinder in the present invention;

Fig. 3 is the front view of the present invention;

Fig. 4 is the sectional view of disc two in the present invention;

5 is a schematic structural diagram of the extraction and injection assembly in the present invention;

FIG. 6 is a schematic diagram of the structure of the drive assembly in the present invention.

In the figure: workbench 1, support legs 2, disc one 3, disc two 4, pillar 5, extraction cylinder 6, liquid injection cylinder 7, liquid replenishment pipe 8, one-way valve 9, extraction injection assembly 10, suction rod 11. Piston head 12, pressing block 13, screw rod 14, driven gear 15, lifting handle 16, arc groove 17, rolling groove 18, magnetic connection block 19, drive assembly 20, puncture needle steel needle body 101, Two-way guide tube 102, manual valve one 103, manual valve two 104, elbow 105, multi-way joint 106, material injection hose 107, material extraction hose 108, exhaust valve 109, arc plate 201, sliding rod 202 , ball 203 , electromagnetic block 204 , bracket 205 , multi-stage motor 206 , drive gear 207 , transposition handle 208 , and control member 209 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation are therefore not to be construed as limitations of the present invention.

Example 1

Referring to Figures 1-4, a continuous extraction and injection device for intrathecal combination medication includes a workbench 1, a support leg 2 is welded on the bottom surface of the workbench 1, and a disc one 3 and a disc two 4 are arranged on the upper side of the workbench 1. Between the disc one 3 and the disc two 4 and between the disc one 3 and the workbench 1 are fixedly connected with pillars 5, the support legs 2 are provided with three and are evenly distributed on the bottom surface of the worktable 1, and the pillars 5 are provided with three And evenly distributed on the bottom surface and top surface of disc one 3, between the disc one 3 and the workbench 1, at least one extraction cylinder 6 and at least three liquid injection cylinders 7 are fixed through, and the extraction cylinder 6 and the liquid injection cylinder 7 are locked. It is fixed in the disc one 3 and the workbench 1 for the convenience of subsequent removal and disinfection. The bottom end of the liquid injection cylinder 7 is connected with a liquid replenishing pipe 8. The inner wall of the liquid replenishing pipe 8 is equipped with a one-way valve 9, and the head of the liquid filling pipe 8 is installed. A sealing cover is also added, and the output ends of the extraction cylinder 6 and the liquid injection cylinder 7 are also connected with the extraction injection assembly 10 for the diversion of the extracted material and the injection material. The piston head 12 is fixed at one end of the pressure rod 11 and the pressure extraction rod 11, the top side of the extraction cylinder 6 and the liquid injection cylinder 7 is fixed with a pressure block 13 by screws, and the pressure block 13 is connected with a screw rod 14 through threads. A driven gear 15 is fixed on the outer side of the upper end of the screw rod 14, a lifting handle 16 is also fixed on the top surface of the second disk 4, and the side walls of the first disk 3 and the second disk 4 are provided with an arc-shaped groove 17. The arc-shaped groove 17 Both the inner bottom surface and the top surface are provided with rolling grooves 18, the side walls of the arc-shaped groove 17 are also embedded with a magnetic connecting block 19, and the arc-shaped groove 17 is also installed with a rolling limit drive assembly for driving the driven gear 15 to rotate. 20.

Before use, the mixed medicine is pressed into the liquid injection cylinder 7 through the liquid refilling tube 8, and the pumping rod 11 is slowly drawn up by the driving assembly 20 when the medicine is injected. After multiple medicines are injected, the device is placed next to the patient. At a suitable treatment position, the extraction and injection assembly 10 is installed on the patient's treatment point, and the patient's cerebrospinal fluid extraction and drug injection are completed with the help of the drive assembly 20, so as to realize the linkage operation of extraction and drug injection, thereby greatly improving the efficiency of treatment. and reduce the risk of infection in patients

Embodiment 2

As shown in FIGS. 1 and 5 , this embodiment is basically the same as Embodiment 1. Preferably, the extraction and injection assembly 10 includes a puncture needle steel needle body 101 , and a bidirectional catheter 102 is fixed at the input end of the puncture needle steel needle body 101 . The guide tube 102 and the puncture needle steel needle body 101 are inserted and fixed, so as to facilitate the maintenance and replacement of the puncture needle steel needle body 101 and the bidirectional guide tube 102, and the upper and lower inner walls of the two-way guide tube 102 are respectively installed with a manual valve 103 With the manual valve 2 104, the bottom end of the bidirectional guide pipe 102 is also connected with an elbow 105, and the other end of the elbow 105 is also connected with a multi-way joint 106. A material injection hose 107 is connected through, a suction hose 108 is connected through the upper side of the bidirectional guide pipe 102 and the extraction cylinder 6, and an exhaust valve 109 is also installed on one side of the bidirectional guide pipe 102, and a manual valve 103 The second manual valve 104 and the second manual valve 104 are installed on the side of the puncture needle steel needle body 101. The length of the material injection hose 107 and the material extraction hose 108 is 30-40 cm, and the diameter is 4 mm.

In this embodiment, the puncture needle steel needle body 101 is inserted into the taper hole of the patient when the injection is extracted, and the first manual valve 103 is opened and the second manual valve 104 is closed. At this time, the driving assembly 20 drives the suction rod in the extraction cylinder 6 11 moves up, at this time, the cerebrospinal fluid in the patient is drawn into the extraction cylinder 6 under the action of negative pressure. After the extraction is completed, the manual valve one 103 is closed and the manual valve two 104 is opened, and then according to the treatment plan, a variety of drugs are sequentially driven by the drive assembly 20. It is injected into the cerebrospinal fluid of the patient, so as to realize the scientific treatment operation of the patient, thereby providing a certain guarantee for the efficient and safe treatment of the patient.

Embodiment 3

As shown in FIGS. 1 and 6 , this embodiment is basically the same as Embodiment 1. Preferably, the drive assembly 20 includes an arc-shaped plate 201 , and the upper and lower inner walls of the arc-shaped plate 201 are fixed with sliding rods 202 , and the sliding rods 202 are all slidably connected In the arc groove 17, balls 203 are installed on the upper and lower sides of the sliding rod 202, and the balls 203 are embedded in the rolling groove 18. Electromagnetic blocks 204 are fixed on one end of the sliding rod 202 away from the arc plate 201, and the arc plate 201 A bracket 205 is also fixed in the middle of the inner side. The top surface of the bracket 205 is fixed with a multi-stage motor 206 by screws. A control member 209 is mounted on 208 .

In this embodiment, when extracting cerebrospinal fluid and injecting drugs, pull the transposition handle 208 to move the drive assembly 20 to a proper position, and then press the control member 209 to make the electromagnetic block 204 electrically connected to the sexual connection block 19 and magnetically fixedly connected, and then according to The rate of drug extraction or injection adjusts the working level of the multi-stage motor 206, so as to realize the constant-speed extraction of cerebrospinal fluid and the constant-speed drug injection operation. Moving to the next position and then performing the next treatment operation, the injection and extraction rates are easily adjusted, and the extraction and injection are stable, thus ensuring the comfort of the patient during treatment.

Embodiment 4

As shown in Figures 1, 2 and 6, this embodiment is basically the same as Embodiment 1. Preferably, the control member 209 includes a control button for controlling the rotation of the multi-stage motor 206, and the rotation rate of the multi-stage motor 206 can be realized by the control button. For stage adjustment, the control part 209 also includes an on-off key for controlling the power-on and power-off of the electromagnetic block 204 .

In this embodiment, the control part 209 can control the multi-stage motor 206 and the multi-stage speed transmission and the electromagnetic block 204 to be energized and de-energized, so as to achieve constant speed extraction of cerebrospinal fluid and the stability of the injection and drive assembly 20 during operation.

Embodiment 5

As shown in Figures 1, 3 and 6, this embodiment is basically the same as Embodiment 1. Preferably, two rolling grooves 18 and two balls 203 are provided, and the center of the driving gear 207 and the center of the driven gear 15 are on the same horizontal plane, When the driving gear 207 rotates to the side of the driven gear 15, it meshes with it for transmission.

In this embodiment, two rolling grooves 18 and two balls 203 are provided, so that the sliding rod 202 is more stable in translation in the arc-shaped groove 17 .

Embodiment 6

As shown in Figures 1 and 3, this embodiment is basically the same as Embodiment 1. Preferably, the bottom end of the liquid injection cylinder 7 is arranged in a cone shape, and the shape of the inner wall of the bottom end of the liquid injection cylinder 7 in the shape of the piston head 12 matches.

In this embodiment, the shape of the piston head 12 is consistent with the shapes of the inner walls of the bottom ends of the extraction cylinder 6 and the liquid injection cylinder 7 , so that the medicine in the liquid injection cylinder 7 can be completely injected.

Embodiment 7

As shown in FIGS. 1 and 3 , this embodiment is basically the same as Embodiment 1. Preferably, the screw rods 14 are all drivingly connected between the first disk 3 and the second disk 4 , and the pressing blocks 13 are all arranged away from the circle. On one side of the center of the disk 2 4 , the number of magnetic connection blocks 19 is the same as the sum of the number of extraction cylinders 6 and liquid injection cylinders 7 , and a plurality of magnetic connection blocks 19 are evenly distributed on the inner side of the side wall of the arc groove 17 .

In this embodiment, there are multiple magnetic connection blocks 19 , so that the drive assembly 20 can be temporarily fixed after moving, thereby ensuring the stability of the device during use.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Equivalent replacements or changes to the inventive concept shall all fall within the protection scope of the present invention.

Claims (10)

1. An intrathecal combined medication continuous extraction and injection device, comprising a workbench (1), and a support leg (2) is welded on the bottom surface of the workbench (1), and it is characterized in that, the upper side of the workbench (1) is provided with a circle Disk one (3) and disk two (4), between disk one (3) and disk two (4) and between disk one (3) and workbench (1) are fixedly connected with pillars (5). ); At least one extraction cylinder (6) and at least three liquid injection cylinders (7) are penetratingly fixed between the disc one (3) and the workbench (1), and one side of the bottom end of the liquid injection cylinder (7) is penetratingly connected. There is a liquid replenishment pipe (8), the inner wall of the liquid replenishment pipe (8) is equipped with a one-way valve (9), the head of the liquid replenishment pipe (8) is also equipped with a sealing cover, and the extraction cylinder (6) and the liquid injection cylinder are installed. (7) The output end is also connected with an extraction and injection assembly (10) for guiding the extraction and injection; The top sides of the extraction cylinder (6) and the liquid injection cylinder (7) are both slidably and sealedly connected with a suction rod (11), and a piston head (12) is fixed at one end of the suction rod (11). ) and the top side of the liquid injection cylinder (7) are fixed with a pressure block (13) by screws, and a screw rod (14) is connected to the pressure block (13) through a thread, and the outer side of the upper end of the screw rod (14) is fixed There is a driven gear (15), a lift handle (16) is also fixed on the top surface of the second disc (4), and arc grooves ( 17), the inner bottom surface and the top surface of the arc groove (17) are provided with rolling grooves (18), and the side walls of the arc groove (17) are also embedded with magnetic connection blocks (19), 17) A drive assembly (20) for driving the driven gear (15) to rotate is also installed in the rolling limit. 2. The device for continuous extraction and injection of intrathecal combination medication according to claim 1, wherein the extraction and injection assembly (10) comprises a puncture needle steel needle body (101), and a puncture needle steel needle body (101) A bidirectional guide pipe (102) is fixed at the input end, and a manual valve one (103) and a manual valve two (104) are respectively installed on the upper and lower inner walls of the two-way guide pipe (102). The bottom end of the two-way guide pipe (102) An elbow (105) is also throughly connected, and the other end of the elbow (105) is also through-connected with a multi-way joint (106), and between the liquid injection cylinders (7) and the interface of the multi-way joint (106) are through-connected. A material injection hose (107), an extraction hose (108) is penetratingly connected between the upper side of the bidirectional guide pipe (102) and the extraction cylinder (6), and one side of the bidirectional guide pipe (102) is further A vent valve (109) is installed. 3. The intrathecal combination medication continuous extraction and injection device according to claim 2, wherein the manual valve one (103) and the manual valve two (104) are both installed on the steel needle body (101) by the puncture needle ) side, the length of the injection hose (107) and the extraction hose (108) is 30-40 cm, and the diameter is 4 mm. 4. The continuous extraction and injection device for intrathecal combination medication according to claim 1, wherein the drive assembly (20) comprises an arc-shaped plate (201), and the upper and lower inner walls of the arc-shaped plate (201) are fixed There is a sliding rod (202), the sliding rod (202) is slidably connected in the arc groove (17), the upper and lower sides of the sliding rod (202) are installed with balls (203), and the balls (203) are embedded in the In the rolling groove (18), an electromagnetic block (204) is fixed at one end of the sliding rod (202) facing away from the arc-shaped plate (201), and a bracket (205) is also fixed in the middle of the inner side of the arc-shaped plate (201). ) The top surface is fixed with a multi-stage motor (206) by screws, a drive gear (207) is fixed at the output end of the multi-stage motor (206), and a transposition handle (208) is also fixed on one side of the arc-shaped plate (201), A control member (209) is installed on the transposition handle (208). 5. The continuous extraction and injection device for intrathecal combination medication according to claim 4, wherein the control member (209) comprises a control button for controlling the rotation of the multi-stage motor (206), and the multi-stage motor (206) ) rotation rate can realize multi-level adjustment through the control button, and the control element (209) also includes an on-off key for controlling the power-on and power-off of the electromagnetic block (204). 6. The continuous extraction and injection device for intrathecal combination medication according to claim 4 or 5, characterized in that there are two rolling grooves (18) and two rolling balls (203), and a driving gear (207) The center of the driven gear (15) is on the same horizontal plane, and the driving gear (207) meshes with the driven gear (15) for transmission when it rotates to the side of the driven gear (15). 7. The continuous extraction and injection device for intrathecal combination medication according to claim 1 or 2, characterized in that, the support legs (2) are provided with three and are evenly distributed on the bottom surface of the workbench (1), and the support legs (2). 5) There are three of them and they are evenly distributed on the bottom and top surfaces of disc one (3). 8. A kind of intrathecal combination drug continuous extraction and injection device according to claim 1 or 4, characterized in that the bottom end of the liquid injection cylinder (7) is arranged in a conical shape, and the piston head (12) is shaped for liquid injection The shape of the inner wall of the bottom end of the cylinder (7) is matched. 9. The continuous extraction and injection device for intrathecal combination medication according to claim 1, characterized in that the screw rod (14) is all drive connected between disc one (3) and disc two (4) , and the pressing blocks (13) are all arranged on the side away from the center of the second disc (4). 10 . The continuous extraction and injection device for intrathecal combination medication according to claim 4 , wherein the number of the magnetic connection blocks ( 19 ) is the sum of the number of extraction cylinders ( 6 ) and liquid injection cylinders ( 7 ). 11 . are consistent, and a plurality of magnetic connection blocks (19) are evenly distributed on the inner side of the side wall of the arc-shaped groove (17).

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