CN210961996U

CN210961996U - Blood sampling device for nephrology department

Info

Publication number: CN210961996U
Application number: CN201921177931.3U
Authority: CN
Inventors: 夏凤芝
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-07-10
Anticipated expiration: 2029-07-25

Abstract

The utility model relates to the technical field of medical equipment, concretely relates to blood sampling device for nephrology department, the outside cover of needle file is equipped with the protection tube, be equipped with first spring between needle file and the protection tube, be equipped with the chucking device between protection tube and the needle file, the upper end lock of protection tube has pjncture needle protective cap, the installation cavity internal rotation is installed the connecting rod, the inboard fixed mounting of the upper end of connecting rod has the fixture block, be equipped with the draw-in groove on the needle file, be equipped with the second spring between the outside of the upper end of connecting rod and the installation cavity, the outside fixed mounting of the lower extreme of connecting rod has the ejector pad, close the nut that is located the top of auxiliary hole; the utility model discloses a set up a protection section of thick bamboo, through rotatory sleeve after finishing using, drive the nut and promote the ejector pad and make the fixture block break away from the draw-in groove, first spring promotes the needle file and makes in the pjncture needle retraction protective tube, avoids the pjncture needle to hinder medical personnel, simple structure, convenient to use.

Description

Blood sampling device for nephrology department

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to blood sampling device of nephrology dept.

Background

At present, the department of nephrology often can carry out the blood sampling assay to the patient, is the hospital and judges the early important step of treatment to the patient. The blood taking needle is used for gathering human blood specimen and supplies chemical examination to detect, and the cover is equipped with the sheath on the needle file of blood taking needle at present generally used, shields the syringe needle formation, avoids the needle point of blood taking needle to bend because of the collision in storage, the transportation and warp. When using the blood taking needle, need take off the sheath and expose the syringe needle, gather blood specimen or blood and finish the back, the syringe needle is dialled out from the patient in vivo, need overlap the sheath again on the needle file of blood taking needle, in order to avoid handling the syringe needle in-process and cause the acupuncture wound to the personnel, however, because the sheath is small, especially the aperture that the sheath corresponds the syringe needle is less, medical personnel is overlapping the in-process of establishing the sheath again, the syringe needle after the use very easily causes the acupuncture wound to medical personnel, cause serious consequences such as medical personnel infection.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a nephrology department blood sampling device is provided, simple structure, convenient to use to can effectively avoid the emergence that the needle pricked, be applicable to clinical popularization and application, with the problem of solving in the background art.

In order to solve the technical problem, the technical scheme of the utility model is that: a blood sample taking device for nephrology department comprises a needle seat, wherein a puncture needle is fixedly mounted at the upper end of the needle seat, a blood transfusion tube is fixedly mounted at the lower end of the needle seat, the puncture needle is communicated with the blood transfusion tube, a handheld needle wing is fixedly mounted on the needle seat, a non-closed protective tube at the upper end is sleeved on the outer side of the needle seat, the needle seat is movably mounted in the protective tube from top to bottom, a through hole for the puncture needle to penetrate out is formed in the corresponding position of the protective tube and the puncture needle, a strip-shaped hole is formed in the corresponding position of the protective tube and the handheld needle wing, the handheld needle wing extends out of the strip-shaped hole and can move along the strip-shaped hole, a first spring for enabling the puncture needle to retract into the protective tube is arranged between the needle seat and the protective tube, and a clamping device for enabling the puncture needle to keep, the upper end of the protection tube is also buckled with a puncture needle protection cap;

the clamping device comprises an installation cavity positioned in the protection tube, a connecting rod is rotatably installed in the installation cavity, the rotating plane of the connecting rod coincides with the tangent plane of the first protection tube along the diameter, a clamping block is fixedly installed on the inner side of the upper end of the connecting rod, a through hole for the clamping block to penetrate out is formed in the corresponding position of the installation cavity and the clamping block, a clamping groove matched with the clamping block is formed in the needle base, when the clamping block is clamped into the clamping groove, the puncture needle extends out of the through hole, a second spring is arranged between the outer side of the upper end of the connecting rod and the installation cavity, a push block is fixedly installed on the outer side of the lower end of the connecting rod, an auxiliary hole for the push block to penetrate out is formed in the corresponding position of the installation cavity and the push block, an inclined plane facing upwards is formed in the part, extending, the protective tube is screwed with a nut positioned above the auxiliary hole, and the outer side of the nut is fixedly provided with a sleeve covering the auxiliary hole.

In the initial state of the utility model, the second spring pushes the fixture block to be clamped into the clamping groove, the push block extends out of the auxiliary hole, the hand-held needle wing is positioned at the upper end of the strip-shaped hole, the first spring is in a compressed state, the puncture needle extends out of the through hole at the moment, the nut is positioned above the auxiliary hole, the sleeve covers the auxiliary hole, the error touch of the push block is avoided to drive the fixture block to be separated from the clamping groove, the first spring pushes the needle seat to enable the puncture needle to be retracted into the protective tube, and the puncture needle protective cap can be punctured; after finishing using, through rotatory sleeve, drive the nut and rotate and downstream, this in-process nut promotes the ejector pad along the inclined plane of ejector pad and moves to the inboard, and the ejector pad passes through the connecting rod and drives the fixture block and move to the outside, makes the fixture block break away from the draw-in groove, then first spring promotes the needle file and makes the pjncture needle receive in the protection tube, avoids the pjncture needle to stab medical personnel.

Furthermore, the handheld needle wing is also provided with anti-skid patterns.

Furthermore, a limiting block positioned between the puncture needle protective cap and the nut is fixedly arranged on the protective tube.

Furthermore, a convex block is arranged on the puncture needle protective cap, and a groove matched with the convex block is arranged on the protective tube.

As a further step, the sleeve is also provided with anti-skid lines.

By adopting the technical scheme, the device for taking blood samples in nephrology department comprises a needle seat, wherein a puncture needle is fixedly arranged at the upper end of the needle seat, a blood transfusion tube is fixedly arranged at the lower end of the needle seat, a handheld needle wing is also fixedly arranged on the needle seat, a protective tube is also sleeved on the outer side of the needle seat, a first spring is arranged between the needle seat and the protective tube, a clamping device is also arranged between the protective tube and the needle seat, the upper end of the protective tube is also buckled with a puncture needle protective cap, a connecting rod is rotatably arranged in an installation cavity, a clamping block is fixedly arranged on the inner side of the upper end of the connecting rod, a clamping groove is arranged on the needle seat, a second spring is arranged between the outer side of the upper end of the connecting rod and the installation cavity, a push block is fixedly arranged on the, a sleeve for covering the auxiliary hole is fixedly arranged on the outer side of the nut; the utility model discloses a set up the protection tube, through rotatory sleeve after finishing using, drive the nut and promote the ejector pad and make the fixture block break away from the draw-in groove, first spring promotes the needle file and makes in the pjncture needle retraction protection tube, avoids the pjncture needle to injure medical personnel, simple structure, convenient to use.

Drawings

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

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a partially enlarged view of portion i in fig. 2.

In the figure: 1-a needle seat; 2, puncturing needle; 3-blood transfusion; 4-hand-held needle wing; 5-protecting the tube; 6-through holes; 7-elongated holes; 8-a first spring; 9-puncture needle protective cap; 10-mounting a cavity; 11-a connecting rod; 12-a fixture block; 13-a via hole; 14-a card slot; 15-a second spring; 16-a push block; 17-auxiliary wells; 18-a nut; 19-a sleeve; 20-a limiting block; 21-a bump; 22-groove.

Detailed Description

As shown in fig. 1 to 3, a blood sampling device for nephrology department comprises a needle seat 1, a puncture needle 2 is fixedly installed at the upper end of the needle seat 1, a blood transfusion tube 3 is fixedly installed at the lower end of the needle seat 1, the puncture needle 2 is communicated with the blood transfusion tube 3, a handheld needle wing 4 is fixedly installed on the needle seat 1, a protective tube 5 with a non-closed upper end is further sleeved outside the needle seat 1, the needle seat 1 is movably installed in the protective tube 5 up and down, a through hole 6 for the puncture needle 2 to penetrate out is arranged at the corresponding position of the protective tube 5 and the puncture needle 2, a strip-shaped hole 7 is arranged at the corresponding position of the protective tube 5 and the handheld needle wing 4, the handheld needle wing 4 extends out of the strip-shaped hole 7 and can move along the strip-shaped hole 7, a first spring 8 for the puncture needle 2 to retract into the protective tube 5 is arranged between the needle seat 1 and the protective, a clamping device which enables the puncture needle 2 to keep extending out of the through hole 6 is further arranged between the protective tube 5 and the needle seat 1, and a puncture needle protective cap 9 is buckled at the upper end of the protective tube 5;

the clamping device comprises a mounting cavity 10 located in the protection tube 5, a connecting rod 11 is rotatably mounted in the mounting cavity 10, a rotating plane of the connecting rod 11 coincides with a tangent plane of the protection tube 5 along the diameter, a clamping block 12 is fixedly mounted on the inner side of the upper end of the connecting rod 11, a through hole 13 for the clamping block 12 to penetrate out is arranged at the corresponding position of the mounting cavity 10 and the clamping block 12, a clamping groove 14 matched with the clamping block 12 is arranged on the needle base 1, when the clamping block 12 is clamped into the clamping groove 14, the puncture needle 2 extends out of the through hole 6, a second spring 15 is arranged between the outer side of the upper end of the connecting rod 11 and the mounting cavity 10, a push block 16 is fixedly mounted on the outer side of the lower end of the connecting rod 11, an auxiliary hole 17 for the push block 16 to penetrate out is arranged at the corresponding position of the mounting cavity 10 and the push block 16, and an inclined plane facing upwards is arranged at the, the protection tube 5 is provided with external threads, the protection tube 5 is screwed with a nut 18 positioned above the auxiliary hole 17, and the outer side of the nut 18 is also fixedly provided with a sleeve 19 covering the auxiliary hole 17.

The handheld needle wing 4 is also provided with anti-skid patterns.

The protection tube 5 is also fixedly provided with a limiting block 20 positioned between the puncture needle protection cap 9 and the nut 18.

The puncture needle protection cap 9 is provided with a convex block 21, and the protection tube 5 is provided with a groove 22 matched with the convex block 21.

The sleeve 19 is also provided with anti-skid lines.

The using method comprises the following steps:

in an initial state, as shown in fig. 3, the second spring 15 pushes the fixture block 12 to be clamped into the clamping groove 14, the push block 16 extends out of the auxiliary hole, the hand-held needle wing 4 is positioned at the upper end of the elongated hole 7, the first spring 8 is in a compressed state, the puncture needle 2 extends out of the through hole 6, the nut 18 is positioned above the auxiliary hole 17, the sleeve 19 covers the auxiliary hole 17, and at the moment, the puncture needle protective cap 9 can be punctured to take a blood sample; after the puncture needle is used, the sleeve 19 is rotated to drive the nut 18 to rotate and move downwards, in the process, the nut 18 pushes the push block 16 to move inwards along the inclined plane of the push block 16, the push block 16 drives the fixture block 12 to move outwards through the connecting rod 11, so that the fixture block 12 is separated from the clamping groove 14, and then the first spring 8 pushes the needle seat 1 to enable the puncture needle 2 to be retracted into the protective tube 5.

The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a blood sample device is taken to nephrology dept, includes needle file (1), the upper end fixed mounting of needle file (1) has pjncture needle (2), the lower extreme fixed mounting of needle file (1) has blood transfusion pipe (3), pjncture needle (2) with blood transfusion pipe (3) are linked together, still fixed mounting has handheld needle wing (4), its characterized in that on needle file (1): the outer side of the needle seat (1) is further sleeved with a protective tube (5) with a non-closed upper end, the needle seat (1) is movably mounted in the protective tube (5) from top to bottom, the protective tube (5) and the corresponding position of the puncture needle (2) are provided with a through hole (6) for the puncture needle (2) to penetrate out, the protective tube (5) and the corresponding position of the handheld needle wing (4) are provided with a strip-shaped hole (7), the handheld needle wing (4) extends out of the strip-shaped hole (7) and can move along the strip-shaped hole (7), a clamping device for enabling the puncture needle (2) to retract into the first spring (8) in the protective tube (5) is arranged between the needle seat (1) and the protective tube (5) and enabling the puncture needle (2) to keep extending out of the state of the through hole (6), the upper end of the protection tube (5) is also buckled with a puncture needle protection cap (9);

the clamping device comprises a mounting cavity (10) located in the protection tube (5), a connecting rod (11) is installed in the mounting cavity (10) in a rotating mode, the rotating plane of the connecting rod (11) coincides with a section of the protection tube (5) along the diameter, a clamping block (12) is fixedly installed on the inner side of the upper end of the connecting rod (11), a through hole (13) for the clamping block (12) to penetrate out is formed in the corresponding position of the mounting cavity (10) and the clamping block (12), a clamping groove (14) matched with the clamping block (12) is formed in the needle base (1), when the clamping block (12) is clamped into the clamping groove (14), the puncture needle (2) extends out of the through hole (6), a second spring (15) is arranged between the outer side of the upper end of the connecting rod (11) and the mounting cavity (10), and a pushing block (16) is fixedly installed on the outer side of the lower end of, installation cavity (10) with ejector pad (16) relevant position department is equipped with the confession auxiliary hole (17) that ejector pad (16) were worn out, stretch out in the outside of ejector pad (16) the part of auxiliary hole (17) is equipped with the inclined plane towards the top, be equipped with the external screw thread on protection tube (5), it has to be located to close soon on protection tube (5) nut (18) of the top of auxiliary hole (17), the outside of nut (18) still fixed mounting have with sleeve (19) that auxiliary hole (17) covered.

2. A nephrology department blood sampling device according to claim 1, wherein: the handheld needle wing (4) is also provided with anti-skid patterns.

3. A nephrology department blood sampling device according to claim 1, wherein: and a limiting block (20) positioned between the puncture needle protective cap (9) and the nut (18) is fixedly arranged on the protective tube (5).

4. A nephrology department blood sampling device according to claim 1, wherein: the puncture needle protection cap (9) is provided with a convex block (21), and the protection tube (5) is provided with a groove (22) matched with the convex block (21).

5. A nephrology department blood sampling device according to claim 1, wherein: the sleeve (19) is also provided with anti-skid lines.