CN215534426U

CN215534426U - Dual-purpose remaining needle for blood drawing and transfusion

Info

Publication number: CN215534426U
Application number: CN202121328504.8U
Authority: CN
Inventors: 戴道辉; 戴开森; 梁义振; 黄鹏; 牙政拾; 王英杰; 韦文林
Original assignee: Youjiang Medical University for Nationalities Affiliated Hospital
Current assignee: Youjiang Medical University for Nationalities Affiliated Hospital
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-01-18
Anticipated expiration: 2031-06-15

Abstract

The utility model relates to the technical field of medical instruments and discloses a dual-purpose indwelling needle for blood drawing and transfusion, which comprises an indwelling needle, wherein a partition plate is fixedly connected in the indwelling needle, a transfusion cavity and a blood drawing cavity are formed in the indwelling needle by taking the partition plate as a partition line, a transfusion hose extending into the transfusion cavity is fixedly connected to the rear side surface of the indwelling needle, a blood drawing hose extending into the blood drawing cavity is fixedly connected to the rear side surface of the indwelling needle, a first mounting block and a second mounting block are respectively arranged on the upper side and the lower side of the transfusion hose and the blood drawing hose, and a sealing mechanism is arranged in the first mounting block. This dual-purpose needle of keeping somewhere of infusion of drawing blood is through being provided with infusion chamber, the chamber of drawing blood, infusion hose, the hose of drawing blood and closing mechanism on keeping somewhere the needle to the messenger keeps somewhere the needle and reaches a dual-purpose effect of needle, can infuse also can draw blood, has reduced the number of times that the patient pricked the needle when needs draw blood and infusion, has reduced the misery of patient when pricking the needle, has reduced nurse's work load.

Description

Dual-purpose remaining needle for blood drawing and transfusion

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a dual-purpose indwelling needle for blood drawing and transfusion.

Background

The transfusion device is a common medical consumable, and is subjected to aseptic processing to establish a channel between a vein and liquid medicine for venous transfusion, but a plurality of patients need to draw blood and transfuse when an outpatient visits a doctor at present, however, the transfusion device and the blood drawing device which are clinically used at present are two different tools, so that when the patient needs to draw blood after transfusion or needs to transfuse after blood drawing, two times of needles need to be pricked on the epidermis of the patient, two steps of operations of blood drawing and transfusion for the patient can be completed, the pain of the patient is increased, meanwhile, the blood drawing operation and the transfusion operation need to be performed by medical staff, the workload of the medical staff is increased, and the working effect of the medical staff is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a dual-purpose indwelling needle for blood drawing and transfusion, which has the advantages that the times of needle insertion are reduced when a patient draws blood or transfusions, and the like, and solves the problem that the patient needs to perform the needle insertion twice when the patient draws blood or transfusions.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a dual-purpose needle of keeping somewhere of infusion of drawing blood, including keeping somewhere the needle, fixedly connected with baffle in keeping somewhere the needle, keep somewhere inside the needle and use the baffle to form infusion chamber and the chamber of drawing blood as the parting line, the infusion hose of infusion intracavity is extended to the rear side fixedly connected with of needle keeps somewhere, the rear side fixedly connected with of needle keeps somewhere extends the hose of drawing blood intracavity, the infusion hose is served with all being provided with the connector with the hose of drawing blood keeps away from the one of keeping somewhere the needle, the infusion hose is provided with first installation piece and second installation piece respectively with the upper and lower both sides of the hose of drawing blood, all seted up two on the opposite face of first installation piece and second installation piece and respectively with infusion hose and the identical reservation groove of the hose of drawing blood, seted up two respectively in the first installation piece and two communicating mounting grooves in reservation groove, be provided with the closing mechanism in the mounting groove.

Preferably, the closing mechanism includes first pressure strip, first pressure strip sliding connection is in the mounting groove, two activity grooves have been seted up respectively to the upper surface of first installation piece, the connecting rod that the last fixed surface of first pressure strip upper end slides and runs through into the activity inslot, connecting rod and the inner wall sliding connection of first installation piece, the activity inslot sliding connection has the upper end to extend the pressure piece in activity groove, the one end fixed connection that the connecting rod is located the activity inslot is at the lower surface according to the pressure piece, the supporting spring on the connecting rod is cup jointed in the lower fixed surface activity of pressing the pressure piece, supporting spring's lower extreme fixed connection is on the bottom inner wall in activity groove.

Preferably, the inner wall of the movable groove is provided with a built-in groove, the built-in groove is connected with a locking rod with the front end extending into the movable groove in a sliding mode, and the outer surface of the pressing block is provided with a locking groove matched with the locking rod.

Preferably, the rear side surface of the locking rod is fixedly connected with a pull rod, the rear end of the pull rod penetrates through the outer surface of the first mounting block in a sliding mode, the rear side surface of the locking rod is fixedly connected with a return spring movably sleeved on the pull rod, and the rear end of the return spring is fixedly connected to the inner wall of the rear side of the built-in groove.

Preferably, the structure of the pressing block is a combination of a cylinder and an inverted round table, and one end of the locking rod, which is positioned in the movable groove, is hemispherical.

Preferably, two mounting grooves communicated with the reserved groove are formed in the second mounting block, a second pressing plate is connected in the mounting groove of the second mounting block in a sliding mode, the lower surface of the second pressing plate is fixedly connected with a supporting air bag of which the lower end is fixedly connected to the inner wall of the bottom of the mounting groove, a foot treading air pump is fixedly connected to the inner wall of the bottom of the mounting groove, and air conveying pipes communicated with the supporting air bag and the foot treading air pump are arranged between the supporting air bag and the foot treading air pump respectively.

Preferably, the right side surface of the first pressure plate is fixedly connected with a contact rod of which the lower end is in contact with the upper surface of the foot-operated air pump.

(III) advantageous effects

Compared with the prior art, the utility model provides a dual-purpose indwelling needle for blood drawing and transfusion, which has the following beneficial effects:

1. this dual-purpose needle of keeping somewhere of infusion of drawing blood, through be provided with the infusion chamber on keeping somewhere the needle, the chamber of drawing blood, the infusion hose, the hose and the closing mechanism of drawing blood, thereby the messenger keeps somewhere the needle and reaches the dual-purpose effect of a needle, can infuse and also can draw blood, the number of times that the patient pricked the needle when needing to draw blood and infusion has been reduced, misery when the patient pricks the needle has been reduced, nurse's work load has been reduced, closing mechanism can completely cut off the transmission of infusion hose or the hose of drawing blood simultaneously, the patient has prevented the condition that another hose got into the air when infusion or drawing blood like this, adverse reaction has appeared when the patient uses.

2. This dual-purpose needle of keeping somewhere of infusion of drawing blood sets up the structure according to the briquetting to the combination form of cylinder and the round platform that reverses to and the locking lever is hemispherical in the one end that is located the movable groove, has increased the smooth degree of pressing the contact surface between briquetting and the locking lever like this, thereby reduced the frictional force that forms when pressing the contact between briquetting and the locking lever, so prevented to appear the dead condition of mechanical card between briquetting and the locking lever according to the briquetting, guaranteed the smoothness nature when this mechanism moves.

Drawings

FIG. 1 is a schematic structural view of a dual-purpose indwelling needle for blood drawing and transfusion of the present invention;

FIG. 2 is a schematic cross-sectional view of a first mounting block of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a schematic cross-sectional view of a second mounting block of the present invention;

fig. 5 is a front plan view of a first mounting block and a second mounting block of the present invention.

In the figure: the blood transfusion device comprises a 1 indwelling needle, a 2 partition plate, a 3 transfusion cavity, a 4 blood pumping cavity, a 5 transfusion hose, a 6 blood pumping hose, a 7 connector, a 8 first mounting block, a 9 second mounting block, a 10 preformed groove, a 11 mounting groove, a 81 first pressure plate, a 82 movable groove, a 83 connecting rod, a 84 pressing block, a 85 supporting spring, a 86 built-in groove, a 87 locking rod, a 88 locking groove, an 89 pull rod, a 810 reset spring, a 811 contact rod, a 91 second pressure plate, a 92 supporting air bag, a 93 foot-operated air pump and a 94 air pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a new technical solution: a dual-purpose indwelling needle for blood drawing and transfusion comprises an indwelling needle 1, a partition plate 2 is fixedly connected in the indwelling needle 1, a transfusion cavity 3 and a blood drawing cavity 4 are formed in the indwelling needle 1 by taking the partition plate 2 as a dividing line, a transfusion hose 5 extending into the transfusion cavity 3 is fixedly connected to the rear side surface of the indwelling needle 1, a blood drawing hose 6 extending into the blood drawing cavity 4 is fixedly connected to the rear side surface of the indwelling needle 1, and one ends of the transfusion hose 5 and the blood drawing hose 6, which are far away from the indwelling needle 1, are respectively provided with a connector 7, so that a transfusion device and a blood drawing device are respectively connected with the transfusion hose 5 and the blood drawing hose 6, and the dual-purpose effect of one needle is achieved, and both transfusion and blood drawing can be performed;

the upper side and the lower side of the transfusion hose 5 and the blood drawing hose 6 are respectively provided with a first mounting block 8 and a second mounting block 9, the opposite surfaces of the first mounting block 8 and the second mounting block 9 are respectively provided with two preformed grooves 10 which are respectively matched with the transfusion hose 5 and the blood drawing hose 6, when the first mounting block 8 and the second mounting block 9 are superposed, the transfusion hose 5 and the blood drawing hose 6 are respectively arranged in the combined preformed grooves 10, and meanwhile, the first mounting block 8 and the second mounting block 9 are connected in a buckling manner, so that the first mounting block 8 and the second mounting block 9 can be detached, and the first mounting block 8 and the second mounting block 9 can be repeatedly used;

referring further to fig. 2, the first mounting block 8 is internally provided with two mounting grooves 11 respectively communicated with the two preformed grooves 10, the connecting structures in the two mounting grooves 11 are communicated with each other, so that the following description mainly refers to the connecting structure in the right mounting groove 11, the mounting groove 11 is slidably connected with a first pressing plate 81, the upper surface of the first mounting block 8 is respectively provided with two movable grooves 82, the upper surface of the first pressing plate 81 is fixedly connected with a connecting rod 83, the upper end of the connecting rod 83 is slidably inserted into the movable groove 82, the connecting rod 83 is slidably connected with the inner wall of the first mounting block 8, the movable groove 82 is slidably connected with a pressing block 84, the upper end of the pressing block 84 extends out of the movable groove 82, one end of the connecting rod 83 located in the movable groove 82 is fixedly connected to the lower surface of the pressing block 84, the lower surface of the pressing block 84 is fixedly connected with a supporting spring 85 movably sleeved on the connecting rod 83, the lower end of the supporting spring 85 is fixedly connected to the inner wall of the bottom of the movable groove 82, the supporting spring 85 has a certain length and strength, so that the horizontal height of the initial position of the first pressing plate 81 is higher than that of the preformed groove 10, and the transfusion hose 5 or the blood drawing hose 6 cannot be affected;

referring to fig. 3, an inner wall of the movable groove 82 is provided with an inner groove 86, the inner groove 86 is slidably connected with a locking rod 87, a front end of the locking rod 87 extends into the movable groove 82, an outer surface of the pressing block 84 is provided with a locking groove 88 matched with the locking rod 87, a rear side surface of the locking rod 87 is fixedly connected with a pull rod 89, a rear end of the pull rod 89 penetrates through an outer surface of the first mounting block 8 in a sliding manner, one end of the pull rod 89, which is positioned outside the first mounting block 8, is fixedly connected with a limiting plate, a rear side surface of the locking rod 87 is fixedly connected with a return spring 810 movably sleeved on the pull rod 89, and a rear end of the return spring 810 is fixedly connected to a rear inner wall of the inner groove 86;

in the embodiment, the structure of the pressing block 84 is further set to be a combination of a cylinder and an inverted circular truncated cone, and one end of the locking rod 87, which is positioned in the movable groove 82, is hemispherical, so that the smoothness of the contact surface between the pressing block 84 and the locking rod 87 is increased, and the friction force formed when the pressing block 84 and the locking rod 87 are contacted is reduced, thereby preventing the mechanical clamping between the pressing block 84 and the locking rod 87, and ensuring the smoothness of the mechanism in operation;

further referring to fig. 4, two mounting grooves 11 communicated with the preformed groove 10 are also formed in the second mounting block 9, a second pressing plate 91 is slidably connected in the mounting groove 11 of the second mounting block 9, a plurality of supporting air bags 92 are fixedly connected to the lower surface of the second pressing plate 91, the lower ends of the supporting air bags are fixedly connected to the inner wall of the bottom of the mounting groove 11, the number of the supporting air bags 92 is not limited according to the actual area of the second pressing plate 91, a foot-operated air pump 93 is fixedly connected to the inner wall of the bottom of the mounting groove 11, and air pipes 94 respectively communicated with the supporting air bags 92 and the foot-operated air pump 93 are arranged between the supporting air bags 92 and the foot-operated air pump 93;

referring further to fig. 5, a contact rod 811 having a lower end contacting an upper surface of the foot pump 93 is fixedly coupled to a right side surface of the first pressing plate 81.

The working principle is as follows: when the dual-purpose indwelling needle for blood drawing and transfusion is used;

the first step is as follows: the transfusion hose 5 and the blood drawing hose 6 are sequentially arranged in two reserved grooves 10 between a first mounting block 8 and a second mounting block 9;

the second step is that: when transfusion or blood drawing is needed to the patient, the pressing block 84 on the transfusion hose 5 or the blood drawing hose 6 can be pressed according to the actual operation, but the operation mode after each pressing block 84 is the same, when the pressing block 84 moves downwards, the connecting rod 83 pushes the first pressing plate 81 to move downwards, the supporting spring 85 contracts synchronously, the contact rod 811 presses the foot pump 93 when the first pressing plate 81 moves downwards, so that the air in the foot-operated air pump 93 enters the support air bag 92 through the air pipe 94, so that the support air bag 92 is inflated, thus, the second pressing plate 91 is pushed to move upwards, so that the transfusion hose 5 or the blood drawing hose 6 is deformed under the extrusion of the first pressing plate 81 and the second pressing plate 91, therefore, the transmission of the transfusion hose 5 or the blood drawing hose 6 is isolated, so that the condition that the blood of the patient flows back cannot occur in the other hose when the patient transfuses or draws blood;

the third step: the pressing block 84 synchronously extrudes the locking rod 87 in the downward displacement process, so that the locking rod 87 is contracted into the built-in groove 86, the return spring 810 is synchronously contracted, when the first pressing plate 81 and the second pressing plate 91 press the transfusion hose 5 or the blood drawing hose 6, the locking rod 87 slides to be at the same horizontal position with the locking groove 88 along the inclined surface of the pressing block 84, and the locking rod 87 extends into the locking groove 88 under the pushing force of the return spring 810, so that the situation that the pressing block 84 rebounds is avoided;

the fourth step: by pulling the pull rod 89 outward, it can be concluded that the first pressing plate 81 and the second pressing plate 91 are restored to the initial state according to the above working principle, and the transmission of the infusion hose 5 or the blood drawing hose 6 is not isolated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A dual-purpose indwelling needle for blood drawing and transfusion comprises an indwelling needle (1), and is characterized in that: the indwelling needle (1) is internally and fixedly connected with a partition plate (2), the indwelling needle (1) is internally provided with an infusion cavity (3) and a blood drawing cavity (4) by taking the partition plate (2) as a dividing line, the rear side surface of the indwelling needle (1) is fixedly connected with an infusion hose (5) extending into the infusion cavity (3), the rear side surface of the indwelling needle (1) is fixedly connected with a blood drawing hose (6) extending into the blood drawing cavity (4), one ends of the infusion hose (5) and the blood drawing hose (6) far away from the indwelling needle (1) are respectively provided with a connector (7), the upper side and the lower side of the infusion hose (5) and the blood drawing hose (6) are respectively provided with a first mounting block (8) and a second mounting block (9), the opposite surfaces of the first mounting block (8) and the second mounting block (9) are respectively provided with two reserved grooves (10) which are respectively matched with the infusion hose (5) and the blood drawing hose (6), two mounting grooves (11) communicated with the two reserved grooves (10) are respectively formed in the first mounting block (8), and a sealing mechanism is arranged in each mounting groove (11).

2. The indwelling needle for both blood drawing and transfusion according to claim 1, wherein: the closing mechanism includes first pressure strip (81), first pressure strip (81) sliding connection is in mounting groove (11), two activity groove (82) have been seted up respectively to the upper surface of first installation piece (8), connecting rod (83) in activity groove (82) are run through in the last fixed surface of first pressure strip (81) upper end slip, connecting rod (83) and first installation piece (8) inner wall sliding connection, sliding connection has upper end to extend according to briquetting (84) of activity groove (82) in activity groove (82), one end fixed connection that connecting rod (83) are located activity groove (82) is at the lower surface of pressing briquetting (84), support spring (85) on connecting rod (83) are cup jointed in the activity to the lower fixed surface of pressing briquetting (84), the lower extreme fixed connection of support spring (85) is on the bottom inner wall of activity groove (82).

3. The indwelling needle for both blood drawing and transfusion according to claim 2, wherein: the inner wall of the movable groove (82) is provided with a built-in groove (86), the built-in groove (86) is connected with a locking rod (87) with the front end extending into the movable groove (82) in a sliding mode, and the outer surface of the pressing block (84) is provided with a locking groove (88) matched with the locking rod (87).

4. The indwelling needle for both blood drawing and transfusion according to claim 3, wherein: the rear side surface fixedly connected with rear end of check lock lever (87) slides and runs through pull rod (89) of first installation piece (8) surface, and the rear side surface fixedly connected with activity of check lock lever (87) cup joints reset spring (810) on pull rod (89), and the rear end fixed connection of reset spring (810) is on the rear side inner wall of built-in groove (86).

5. The indwelling needle for both blood drawing and transfusion according to claim 3, wherein: the structure of the pressing block (84) is set to be a combination of a cylinder and an inverted round table, and one end of the locking rod (87) positioned in the movable groove (82) is hemispherical.

6. The indwelling needle for both blood drawing and transfusion according to claim 2, wherein: two communicating mounting grooves (11) with preformed groove (10) are seted up in second installation piece (9) equally, sliding connection has second pressure strip (91) in mounting groove (11) of second installation piece (9), the lower fixed surface of second pressure strip (91) is connected with support gasbag (92) of lower extreme fixed connection on mounting groove (11) bottom inner wall, fixedly connected with foot trample air pump (93) on the bottom inner wall of mounting groove (11), be provided with respectively with support gasbag (92) and the communicating gas-supply pipe (94) of foot trample air pump (93) between support gasbag (92) and foot trample air pump (93).

7. The indwelling needle for both blood drawing and transfusion according to claim 6, wherein: the right side surface of the first pressing plate (81) is fixedly connected with a contact rod (811) of which the lower end is in contact with the upper surface of the foot-operated air pump (93).