CN210811390U

CN210811390U - Medical oncology device of dosing

Info

Publication number: CN210811390U
Application number: CN201920615083.3U
Authority: CN
Inventors: 王惠临
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-06-23
Anticipated expiration: 2029-04-30

Abstract

The utility model relates to the technical field of medical equipment, and an internal medicine of tumor device of dosing is disclosed, including for the cartridge case, there is the pjncture needle for the bottom fixed mounting of cartridge case, there is the piston piece of matching for the inside sliding connection of cartridge case, the last fixed surface of piston piece is connected with the piston rod, the other end of piston rod passes the top of giving the cartridge case and upwards extends, fixedly connected with outer tube on the lateral wall of giving the cartridge case, and the outer tube is open-ended hollow structure, the outer tube interpolation is equipped with the inner tube of matching, and inner tube and outer tube sliding connection, fixedly connected with connecting rod on the outer tube wall on inner tube is close to the top, the other end of connecting rod is close to the pole wall fixed connection on top with the piston rod, the bottom fixedly connected with spring leaf for the cartridge case is kept away. The utility model discloses make medical oncology device of dosing can realize continuous accurate trace and supply the medicine.

Description

Medical oncology device of dosing

Technical Field

The utility model relates to the technical field of medical appliances, especially, relate to a medical oncology device of dosing.

Background

The current approach for tumor therapy is mainly controlled therapy by taking relevant drugs, and the most common administration routes are intravenous and oral. There are many factors that affect the local effective concentration of a drug, an important factor being the volume of the tumor. Large tumors often have poor blood supply in some areas, resulting in low drug concentrations. This problem can be solved by injecting the drug directly into the site of the tumor. Liver cancer intervention is a good example.

The existing drug delivery device applicable to direct injection in the oncology department has the defects that the injection amount can not be accurately controlled, continuous micro drug delivery can not be realized, the drug delivery in a short time is easy to be excessive, and the treatment is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the medical oncology drug delivery device in the prior art can not continuously supply drugs in micro-quantity and accurately, and providing the medical oncology drug delivery device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a drug delivery device for the medical oncology comprises a drug delivery cylinder, wherein a puncture needle is fixedly mounted at the bottom of the drug delivery cylinder, a matched piston block is connected to the interior of the drug delivery cylinder in a sliding manner, a piston rod is fixedly connected to the upper surface of the piston block, the other end of the piston rod penetrates through the top of the drug delivery cylinder and extends upwards, an outer tube is fixedly connected to the outer side wall of the drug delivery cylinder and is of a hollow structure with an opening at the top end, a matched inner tube is inserted into the outer tube and is in sliding connection with the outer tube, a connecting rod is fixedly connected to the outer tube wall of the inner tube close to the top end, the other end of the connecting rod is fixedly connected with the rod wall of the piston rod close to the top end, a spring piece is fixedly connected to the bottom end of the inner tube far away from the drug delivery cylinder, a plurality of uniformly, the spring clamping device is characterized in that one end, far away from the spring piece, of the clamping block extends into one of the clamping grooves, a matched pushing block is connected in the clamping groove in a sliding mode, a sliding rod is fixedly connected to one side, close to the bottom of the clamping groove, of the pushing block, the other end of the sliding rod penetrates through the bottom of the clamping groove and extends to the outer side of the bottom of the clamping groove, the sliding rod is connected with the bottom of the clamping groove in a sliding mode, and the pushing block is fixedly connected with springs.

Preferably, a sliding groove is formed in the inner pipe wall of the outer pipe close to the medicine feeding barrel, a sliding block matched with the sliding groove is fixedly connected to the outer pipe wall of the inner pipe close to the bottom end, and the sliding block is connected with the sliding groove in a sliding mode.

Preferably, one end of the sliding rod, which is far away from the push block, is fixedly connected with a pressing cap.

Preferably, the outer side of the piston block is fixedly sleeved with a matched rubber ring.

Preferably, a pressure rod is fixedly connected to the outer pipe wall of the inner pipe close to the top end.

Preferably, a ball groove is formed in one side, close to the bottom of the sliding groove, of the sliding block, a ball is connected in the ball groove in a rolling mode, one end, far away from the bottom of the ball groove, of the ball penetrates through a groove opening of the ball groove and extends outwards, and the ball is connected to the bottom of the sliding groove in a rolling mode.

Compared with the prior art, the utility model provides a device of dosing of medical oncology possesses following beneficial effect:

1. this device of dosing of medical oncology, give the cartridge case through the setting, the piston piece, the piston rod, the outer tube, the inner tube, the connecting rod, the spring leaf, the draw-in groove, the fixture block, the ejector pad, slide bar and spring, when needing to supply the medicine, press the slide bar, it slides towards the notch direction of draw-in groove to drive the ejector pad, the fixture block breaks away from with the draw-in groove under the extrusion of ejector pad, push down the inner tube, it descends to drive the piston rod that is connected with the piston piece through the connecting rod, the inner tube slides along the outer tube, it glides to drive the fixture block, when the fixture block slides to next draw-in groove corresponding position, the spring leaf is because of the tension effect with the fixture.

2. This device of dosing of medical oncology, through setting up the inner tube, the outer tube, spout and slider, the inner tube slides along the outer tube, can drive the slider along spout synchronous sliding, the sliding distance of slider has been restricted to the spout, thereby prevent effectively that inner tube and outer tube from breaking away from, when the lateral wall on slider and spout top offseted, the fixture block was with the draw-in groove block on topmost, when the lateral wall of slider and spout bottom offseted, the fixture block was with the draw-in groove block on bottommost, thereby make things convenient for the position calibration, improve the accurate nature of confession medicine.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses make medical oncology device of dosing can realize continuous accurate trace and supply medicine.

Drawings

Fig. 1 is a schematic structural view of a drug delivery device for medical oncology provided by the utility model;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is an enlarged view of a portion B in fig. 1.

In the figure: 1 medicine cylinder, 2 puncture needles, 3 piston blocks, 4 piston rods, 5 outer pipes, 6 inner pipes, 7 connecting rods, 8 spring pieces, 9 clamping grooves, 10 clamping blocks, 11 pushing blocks, 12 sliding rods, 13 springs, 14 sliding grooves, 15 sliding blocks, 16 pressing caps, 17 pressing rods, 18 ball grooves and 19 balls.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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 only for convenience of description and 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.

Referring to fig. 1-3, an internal medicine oncology drug delivery device comprises a drug delivery cartridge 1, a puncture needle 2 is fixedly mounted at the bottom of the drug delivery cartridge 1, a matched piston block 3 is slidably connected inside the drug delivery cartridge 1, a piston rod 4 is fixedly connected to the upper surface of the piston block 3, the other end of the piston rod 4 penetrates through the top of the drug delivery cartridge 1 and extends upwards, an outer tube 5 is fixedly connected to the outer side wall of the drug delivery cartridge 1, the outer tube 5 is of a hollow structure with an open top end, a matched inner tube 6 is inserted into the outer tube 5, the inner tube 6 is slidably connected with the outer tube 5, a connecting rod 7 is fixedly connected to the outer tube wall of the inner tube 6 close to the top end, the other end of the connecting rod 7 is fixedly connected to the rod wall of the piston rod 4 close to the top end, a spring leaf 8 is fixedly connected to the bottom end of, one side of the spring piece 8 close to the clamping groove 9 is fixedly connected with a matched clamping block 10, one end of the clamping block 10 far away from the spring piece 8 extends into one clamping groove 9, a matched push block 11 is connected in the clamping groove 9 in a sliding manner, one side of the push block 11 close to the groove bottom of the clamping groove 9 is fixedly connected with a slide rod 12, the other end of the slide rod 12 penetrates through the groove bottom of the clamping groove 9 and extends to the outer side of the clamping groove, the slide rod 12 is connected with the groove bottom of the clamping groove 9 in a sliding manner, the push block 11 is fixedly connected with the groove bottom of the clamping groove 9 through symmetrically arranged springs 13, when medicine supply is needed, the slide rod 12 is pressed to drive the push block 11 to slide towards the direction of the groove opening of the clamping groove 9, the clamping block 10 is separated from the clamping groove 9 under the extrusion of the push block 11, the inner pipe 6 is pressed downwards, the piston rod 4 connected with the piston block, the spring piece 8 pops the clamping block 10 into the corresponding clamping groove 9 under the action of tension, and continuous accurate micro-dosage can be realized through repeated operation.

Outer tube 5 has been close to and has been seted up spout 14 on the inner tube wall of giving cartridge case 1, inner tube 6 is close to the outer tube wall of bottom on fixedly connected with and the slider 15 that spout 14 matches, and slider 15 and spout 14 sliding connection, inner tube 6 slides along outer tube 5, can drive slider 15 along spout 14 synchronous sliding, spout 14 has restricted slider 15's sliding distance, thereby effectively prevent inner tube 6 and outer tube 5 and break away from, when slider 15 offsets with the lateral wall on spout 14 top, fixture block 10 and the draw-in groove 9 block on top, when the lateral wall of slider 15 and spout 14 bottom offsets, fixture block 10 and the draw-in groove 9 block on bottom, thereby make things convenient for the position calibration, improve the accuracy of supplying medicine.

One end of the sliding rod 12 far away from the pushing block 11 is fixedly connected with a pressing cap 16, which is convenient for pressing the sliding rod 12 to slide.

The outside of piston block 3 is fixed to be cup jointed with the rubber circle that matches, improves the leakproofness.

The outer pipe wall of the inner pipe 6 close to the top end is fixedly connected with a pressure lever 17, so that the inner pipe 6 is conveniently driven to slide.

The ball groove 18 has been seted up to one side that slider 15 is close to the spout 14 tank bottom, and roll in the ball groove 18 and be connected with ball 19, and ball 19 is kept away from the one end of ball groove 18 tank bottom and is passed the notch of ball groove 18 and outwards extend, and roll connection is at the tank bottom of spout 14, reduces the frictional force between slider 15 and the spout 14.

In the utility model, when the medicine is required to be supplied, the sliding rod 12 is pressed to drive the push block 11 to slide towards the notch direction of the clamping groove 9, the clamping block 10 is separated from the clamping groove 9 under the extrusion of the push block 11, the inner tube 6 is pressed downwards, the piston rod 4 connected with the piston block 3 is driven to descend through the connecting rod 7, the inner tube 6 slides along the outer tube 5 to drive the clamping block 10 to slide downwards, when the clamping block 10 slides to the corresponding position of the next clamping groove 9, the clamping block 10 is ejected into the corresponding clamping groove 9 by the spring leaf 8 under the tension effect, and the continuous accurate micro-medicine supply can be realized through repeated operation; inner tube 6 slides along outer tube 5, can drive slider 15 along the synchronous slip of spout 14, spout 14 has restricted slider 15's sliding distance, thereby effectively prevent inner tube 6 and outer tube 5 and break away from, when slider 15 offsets with the lateral wall on spout 14 top, fixture block 10 and the draw-in groove 9 block on topmost, when the lateral wall of slider 15 and spout 14 bottom offsets, fixture block 10 and the draw-in groove 9 block on bottommost, thereby make things convenient for the position calibration, improve the accurate nature of confession medicine.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a medical oncology device of dosing, includes for cartridge case (1), its characterized in that, the bottom fixed mounting who gives cartridge case (1) has pjncture needle (2), the inside sliding connection who gives cartridge case (1) has piston block (3) of matching, the last fixed surface of piston block (3) is connected with piston rod (4), the other end of piston rod (4) passes the top of giving cartridge case (1) and upwards extends, fixedly connected with outer tube (5) on the lateral wall of giving cartridge case (1), and outer tube (5) are open-ended hollow structure, outer tube (5) interpolation is equipped with matching inner tube (6), and inner tube (6) and outer tube (5) sliding connection, fixedly connected with connecting rod (7) on the outer tube wall that inner tube (6) are close to the top, the other end of connecting rod (7) is close to the pole wall fixed connection on the top with piston rod (4), the bottom end of the inner tube (6) far away from the medicine feeding barrel (1) is fixedly connected with a spring leaf (8), a plurality of clamping grooves (9) which are uniformly distributed are arranged on the inner pipe wall of the outer pipe (5) close to the spring piece (8), one side of the spring piece (8) close to the clamping groove (9) is fixedly connected with a matched clamping block (10), one end of the clamping block (10) far away from the spring piece (8) extends into one clamping groove (9), a matched push block (11) is connected in the clamping groove (9) in a sliding way, a sliding rod (12) is fixedly connected at one side of the push block (11) close to the bottom of the clamping groove (9), the other end of the sliding rod (12) penetrates through the groove bottom of the clamping groove (9) and extends to the outer side of the clamping groove, and the sliding rod (12) is in sliding connection with the bottom of the clamping groove (9), and the push block (11) is fixedly connected with the bottom of the clamping groove (9) through symmetrically arranged springs (13).

2. The drug delivery device for the medical oncology according to claim 1, wherein the outer tube (5) has a sliding slot (14) formed on an inner tube wall close to the drug delivery cartridge (1), a sliding block (15) matched with the sliding slot (14) is fixedly connected to an outer tube wall close to the bottom end of the inner tube (6), and the sliding block (15) is slidably connected with the sliding slot (14).

3. The medical oncology drug delivery device according to claim 1, characterized in that a pressing cap (16) is fixedly connected to one end of the slide bar (12) remote from the push block (11).

4. The drug delivery device for the oncology department according to claim 1, characterized in that the outside of the piston block (3) is fixedly sleeved with a matching rubber ring.

5. An oncology department drug delivery device according to claim 1, characterized in that a pressure bar (17) is fixedly connected to the outer tube wall of the inner tube (6) near the top end.

6. The drug delivery device for the oncology department according to claim 2, characterized in that a ball groove (18) is formed in one side of the slide block (15) close to the bottom of the sliding groove (14), a ball (19) is connected in the ball groove (18) in a rolling manner, one end of the ball (19) far away from the bottom of the ball groove (18) penetrates through the notch of the ball groove (18) and extends outwards, and the ball is connected at the bottom of the sliding groove (14) in a rolling manner.