CN215023847U

CN215023847U - Pre-flushing type catheter forced pulse flushing injector

Info

Publication number: CN215023847U
Application number: CN202120730102.4U
Authority: CN
Inventors: 张永筠
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-12-07
Anticipated expiration: 2031-04-12

Abstract

A pre-flush catheter forced pulse flushing injector relates to the field of medical appliances; a pre-flush type catheter forced pulse flushing injector comprises a needle cylinder, a pulse plunger mechanism and a hand mold part, wherein a large thenar hand mold of the hand mold part forces a nurse to use a large thenar to prop against a plunger handle according to the requirement in normal operation, and the pulse plunger mechanism can force the nurse to stop a pulse flushing method according to the requirement in normal operation; a pre-flush type catheter forces a pulse flushing syringe to force a nurse to normally operate according to nursing requirements, and a large thenar is used for pushing a piston handle to push and stop the pulse flushing syringe.

Description

Pre-flushing type catheter forced pulse flushing injector

Technical Field

The utility model relates to the field of medical equipment, specificly relate to a preflush formula pipe forces pulse to wash syringe.

Background

With the improvement of medical technology level, after a patient is in hospital, an indwelling needle, a PICC (peripherally inserted central catheter) or a central venous catheter and the like are selected for transfusion, before and after the catheter is used for transfusion, a pre-filling type flusher is used for flushing the catheter, and the catheter needs to be flushed in a pulse mode, but if the flushing method is incorrect, the catheter is easy to block, so that the use time of the catheter is shortened; therefore, the cost of the patients is increased, the workload of nurses is increased, the number of the patients in each hospital is large, the manpower resources of the nurses are relatively insufficient, the proportion of new nurses is increased, the nurses are carelessly and singly nursed, the nurses are unsupervised, and the tube sealing training is lack of the new nurses, so that the tube plugging rate of the clinically indwelling needle is high.

In summary, the present pulse syringe has the following technical problems: 1) the pulse type flushing pipe is required to be stopped once pushed, but many people cannot operate according to a normal method to cause the blockage of a catheter channel, and individual nurses even do not push the flushing pipe according to the pulse type flushing pipe but directly push the flushing pipe liquid, so that the effect of the pulse type flushing pipe cannot be achieved; 2) according to the operation requirement of the flushing and sealing pipe, the thenar is required to be propped against the piston handle, but a large number of people do not prop against the piston handle by thumbs for normal operation, so that the injection pressure is too small, the pulse type flushing pipe is improper, and the liquid injection quantity of the injected flushing pipe does not meet the requirement.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem that prior art exists, the utility model provides a dash formula pipe in advance forces pulse flushing syringe can avoid the nurse not according to the regular operation of nursing requirement and the mistake that produces.

In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:

the large thenar hand model of the hand model part forces a nurse to use the large thenar to prop against the plunger handle according to the requirement in normal operation, and the pulse type plunger mechanism can force the nurse to stop the pulse type tube flushing method according to the requirement in the normal operation.

Furthermore, be equipped with the scale mark in the cylinder main part of cylinder, cylinder main part one end fixedly connected with cylinder mouth, cylinder main part other end fixedly connected with cylinder handle, two supports of cylinder one side fixedly connected with slide rail between the support, the slide rail with cylinder main part inboard is provided with pulse plunger mechanism.

Furthermore, the pulse plunger mechanism comprises a slider spring, a slot slider, a plunger core rod, a rubber head piston, an extension piston handle, a rotary rod, a rotary clamping piece, a movable rod spring, a threaded rod and a screw rod spring, wherein the slot slider is connected on the slide rail in a sliding manner, arc-shaped grooves are linearly arranged on the slot slider, the edges of the grooves of the slot slider are fillets, one side of the slot slider, which is close to the syringe nozzle, is provided with a hole with a diameter larger than that of the slide rail, a bracket at the inner side of the hole of the slot slider is sleeved with the slider spring, the rubber head piston is connected inside the syringe main body in a sliding manner, one side of the rubber head piston, which is close to the syringe handle, is fixedly connected with one end of the plunger core rod, the other end of the plunger core rod is fixedly connected with the extension piston handle, one end of the extension piston handle is provided with a through hole, and the rotary rod is rotationally connected with the extension piston handle through hole, the rotary rod is as long as the plunger core rod, one side of the rotary rod close to the syringe nozzle is fixedly connected with a rotary clamping piece, the rotary clamping piece is in an oval shape, the outer edge of the rotary clamping piece is thin, the rotary clamping piece is matched with the groove of the groove sliding block, one end of the rotary rod close to the syringe handle is in a stepped shaft shape, the stepped shaft shape of the syringe handle is rotatably connected into the through hole of the extension piston handle, one end of the rotary rod close to the syringe handle is provided with a hole, the inner side of the hole of the rotary rod is slidably connected with the threaded rod, the inner side of the hole of the rotary rod is provided with a groove matched with the threaded rod, the rotary rod is matched with the rotary rod to enable the rotary rod to rotate, the rotary clamping piece is clamped in the groove sliding block groove, the threaded rod is close to one end of the syringe nozzle and is provided with a screw rod spring at the bottom of the hole of the rotary rod, and the joint of the plunger core rod and the extension piston handle is provided with a stepped hole, there is the movable rod at shoulder hole sliding connection, the movable rod is the step shaft form, the movable rod be close to cylinder mouth one end with the shoulder hole bottom is equipped with the movable rod spring on the plunger core bar the movable rod is kept away from with the rotary rod cylinder handle one end fixedly connected with hand mould portion.

Furthermore, the hand model part is a groove in the shape of the thenar position of the palm.

The utility model has the advantages that:

a pre-flush type catheter forces a pulse flushing syringe to force a nurse to normally operate according to nursing requirements, and a large thenar is used for pushing a piston handle to push and stop the pulse flushing syringe.

The utility model discloses a pulse plunger mechanism can produce mechanical type and stop after promoting one section distance of plunger, forces the nurse to reduce the strength to the plunger handle, makes pulse plunger mechanism untie the restriction, just can carry out the promotion next time to this reaches the effect of pulsed washing pipe, avoids the pipe to say the jam, the unable condition of using.

The utility model discloses a shape of the big thenar hand mould of hand mould portion can make the nurse carry out the pulsed towards the pipe according to the normal operation of nursing requirement with the requirement that the big thenar withstood plunger handle application of force, avoids using the too high and difficult control of injection volume of injection pressure that the thumb leads to inject excessive problem.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall structure of a pre-flush catheter forced pulse flush syringe according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the syringe according to the embodiment of the present invention;

fig. 3 is a schematic cross-sectional structure view of the needle cylinder and the slot slider according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a pulse plunger mechanism according to an embodiment of the present invention;

fig. 5 is a schematic sectional structure view of the pulse plunger mechanism according to the embodiment of the present invention;

fig. 6 is a schematic structural view of the hand mold portion according to the embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-syringe body, 101-scale mark, 102-syringe mouth, 103-syringe handle, 104-support, 105-slide rail, 106-slider spring, 110-slot slider, 2-plunger core rod, 201-rubber head piston, 202-extension piston handle, 210-rotary rod, 211-rotary clamping piece, 3-thenar hand mold, 301-movable rod, 3011-movable rod spring, 302-threaded rod, 3021-screw rod spring.

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. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-6

The utility model relates to a preflush formula pipe forces pulse to wash syringe, as shown in the figure, including cylinder, pulse plunger mechanism and hand mould portion, big thenar hand mould (3) of hand mould portion forces the nurse to push up the plunger handle according to the use big thenar that requires in the normal operation, pulse plunger mechanism can force the nurse to push according to the requirement in the normal operation and stop pulse type towards the pipe gimmick; the needle cylinder comprises a needle cylinder body (1) of the needle cylinder, and is characterized in that scale marks (101) are arranged on the needle cylinder body (1), one end of the needle cylinder body (1) is fixedly connected with a needle cylinder nozzle (102), the other end of the needle cylinder body (1) is fixedly connected with a needle cylinder handle (103), one side of the needle cylinder is fixedly connected with two supports (104), a sliding rail (105) is fixedly connected between the supports (104), and pulse plunger mechanisms are arranged on the inner sides of the sliding rail (105) and the needle cylinder body (1); the pulse plunger mechanism comprises a slider spring (106), a slot slider (110), a plunger core rod (2), a rubber head piston (201), an extension piston handle (202), a rotary rod (210), a rotary clamping piece (211), a movable rod (301), a movable rod spring (3011), a threaded rod (302) and a screw rod spring (3021), wherein the slot slider (110) is connected to the slide rail (105) in a sliding manner, arc-shaped grooves are arranged on the slot slider (110) in a linear manner, the edges of the grooves of the slot slider (110) are rounded corners to prevent the clamping piece from being clamped, a hole larger than the diameter of the slide rail (105) is formed in one side, close to the syringe nozzle (102), of the slot slider (110), a slider spring (106) is sleeved on a support (104) on the inner side of the hole of the slot slider (110), a rubber head piston (201) is connected to the inside of the syringe main body (1) in a sliding manner, one end, close to one side of the syringe handle (103), of the plunger core rod (2), of the rubber head piston (201), plunger core bar (2) other end fixedly connected with extension piston handle (202), extension piston handle (202) extension handle one end is equipped with the through-hole, extension piston handle (202) through-hole internal rotation is connected with rotary rod (210), rotary rod (210) with plunger core bar (2) isometric, rotary rod (210) are close to rotatory fastener (211) of syringe mouth (102) one side fixedly connected with, rotatory fastener (211) are oval, rotatory fastener (211) outward flange is thinner, prevents rotatory fastener (211) card die, rotatory fastener (211) with slot slider (110) groove fit, rotary rod (210) are close to syringe handle (103) one end is the step shaft form, syringe handle (103) step shaft form rotate connect in extension piston handle (202) through-hole, rotary rod (210) are close to syringe handle (103) one end is opened there is the hole, the inboard sliding connection in rotary rod (210) hole has threaded rod (302), rotary rod (210) hole inboard open have with threaded rod (302) complex recess, threaded rod (302) makes with rotary rod (210) cooperation rotary rod (210) is rotatory, will rotatory fastener (211) card is in groove slider (110) recess, threaded rod (302) are close to syringe mouth (102) one end and are provided with screw spring (3021) rotary rod (210) hole bottom plunger core bar (2) and extension piston handle (202) junction are opened there is the shoulder hole, have movable rod (301) at shoulder hole sliding connection, movable rod (301) are the shoulder shaft form, the shoulder shaft shape of movable rod (301) slides and can not break away from plunger core bar (2) shoulder hole at plunger core bar (2) shoulder hole, movable rod (301) be close to syringe mouth (102) one end with the shoulder shaft hole bottom is equipped with movable rod spring bottom on plunger (2) (3011) A hand mould part is fixedly connected to one end of the movable rod (301) and the rotary rod (210) far away from the syringe handle (103); the hand model part is a groove in the shape of the thenar position of the palm.

When a nurse pushes liquid in the needle cylinder main body by using the thenar hand mold and the needle cylinder handle, a movable rod and a threaded rod on the thenar hand mold compress a movable rod spring and a threaded rod spring respectively along holes on an extension piston handle and the rotating rod, the threaded rod enables a rotating clamping piece at one end of the rotating rod to rotate, the rotating clamping piece is clamped in a groove of a groove sliding block, the thenar hand mold touches the extension piston handle, force is continuously exerted on the thenar hand mold and the needle cylinder handle, the thenar hand mold pushes a rubber head piston to inject the liquid in the needle cylinder main body through a plunger core rod, meanwhile, the rotating clamping piece drives the groove sliding block to compress the sliding block spring along a sliding rail to the direction of the needle cylinder mouth, when the groove sliding block touches a support beside the needle cylinder mouth, the groove sliding block cannot move continuously, at the moment, no matter how much force is exerted on the thenar hand mold and the needle cylinder handle, the injection liquid flushing quantity can not be continuously injected, and the preset value is reached, if 1ML, need the nurse to reduce the power of exerting on big thenar hand mould and cylinder handle, make movable rod and the threaded rod on the big thenar hand mould reset by movable rod spring and screw spring along the hole on extension piston handle and the rotary rod respectively, the threaded rod makes the rotatory fastener reverse rotation of rotary rod one end, rotatory fastener breaks away from the recess of groove slider, the groove slider is reset by the slider spring to cylinder handle direction along the slide rail, so that application of force is injected next time, push 1ML with big thenar according to the normal method, stop 0.4 seconds mode operation, realize the pulsed towards the pipe.

To sum up, the utility model relates to a dash formula pipe in advance forces pulse flushing syringe can force the nurse to operate according to the normal operation of nursing requirement, uses big thenar to promote the piston handle and pushes away the pulsed washing pipe that stops once, avoids the pipe way that the unlevel washing pipe leads to block up, and the condition of can not use still avoids using the too high and injection quantity of injection pressure that the thumb leads to the excessive problem of uncontrollable injection.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pre-flush catheter forced pulse flush syringe characterized by: the large thenar hand model of the hand model part forces a nurse to use the large thenar to prop against the plunger handle according to the requirement in normal operation, and the pulse type plunger mechanism can force the nurse to push and stop the pulse type flushing tube method according to the requirement in the normal operation; the needle cylinder comprises a needle cylinder body, a needle cylinder handle, a needle cylinder, a sliding rail, a pulse plunger mechanism and a needle cylinder body, wherein scale marks are arranged on the needle cylinder body of the needle cylinder, one end of the needle cylinder body is fixedly connected with the needle cylinder nozzle, the other end of the needle cylinder body is fixedly connected with the needle cylinder handle, one side of the needle cylinder is fixedly connected with two supports, the sliding rail is fixedly connected between the supports, and the sliding rail and the inner side of the needle cylinder body are provided with the pulse plunger mechanism; the pulse plunger mechanism comprises a slider spring, a slot slider, a plunger core rod, a rubber head piston, an extension piston handle, a rotary rod, a rotary clamping piece, a movable rod spring, a threaded rod and a screw rod spring, wherein the slot slider is connected on the slide rail in a sliding manner, arc-shaped grooves are linearly arranged on the slot slider, the edges of the grooves of the slot slider are fillets, one side of the slot slider, which is close to the needle cylinder nozzle, is provided with a hole larger than the diameter of the slide rail, a bracket at the inner side of the hole of the slot slider is sleeved with the slider spring, the rubber head piston is connected inside the needle cylinder main body in a sliding manner, one end of the plunger core rod is fixedly connected at one side of the rubber head piston, which is close to the needle cylinder handle, the other end of the plunger core rod is fixedly connected with the extension piston handle, one end of the extension piston handle is provided with a through hole, the through hole of the extension piston handle is rotatably connected with the rotary rod, and the rotary rod is as long as the plunger core rod, the rotary rod is fixedly connected with a rotary clamping piece close to one side of the needle cylinder nozzle, the rotary clamping piece is oval, the outer edge of the rotary clamping piece is thin, the rotary clamping piece is matched with the groove block groove, one end of the rotary rod close to the needle cylinder handle is in a stepped shaft shape, the stepped shaft shape of the needle cylinder handle is rotatably connected in the through hole of the extension piston handle, one end of the rotary rod close to the needle cylinder handle is provided with a hole, the inner side of the hole of the rotary rod is slidably connected with the threaded rod, the inner side of the hole of the rotary rod is provided with a groove matched with the threaded rod, the threaded rod is matched with the rotary rod to enable the rotary rod to rotate, the rotary clamping piece is clamped in the groove block groove, one end of the threaded rod close to the needle cylinder nozzle and the bottom of the hole of the rotary rod are provided with screw springs, and the joint of the plunger core rod and the extension piston handle is provided with a stepped hole, there is the movable rod at shoulder hole sliding connection, the movable rod is the step shaft form, the movable rod be close to cylinder mouth one end with the shoulder hole bottom is equipped with the movable rod spring on the plunger core bar the movable rod is kept away from with the rotary rod cylinder handle one end fixedly connected with hand mould portion.

2. The pre-flush catheter forced pulse flush syringe of claim 1, wherein: the hand model part is a groove in the shape of the thenar position of the palm.