CN213249143U

CN213249143U - Semi-automatic blood sampling device

Info

Publication number: CN213249143U
Application number: CN202022031309.0U
Authority: CN
Inventors: 黄彬; 杨成亮; 曹聪
Original assignee: Youjiang Medical University for Nationalities Affiliated Hospital
Current assignee: Youjiang Medical University for Nationalities Affiliated Hospital
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-05-25
Anticipated expiration: 2030-09-16

Abstract

The utility model relates to the technical field of medical apparatus, in particular to a semi-automatic blood sampling device, which comprises an outer sleeve, an inner sleeve and a central column; the upper end of the outer sleeve is fixedly connected with a fixing piece, and the lower end of the outer sleeve is provided with a conveyor belt in a penetrating way; the conveying belt is in transmission connection with the outer peripheral surface of the lower end of the inner sleeve; the inner sleeve is coaxially inserted into the top wall of the outer sleeve, one end of the inner sleeve, which extends into the outer sleeve, is provided with a turntable, and the peripheral surface of the turntable is clamped with the inner side wall of the outer sleeve so as to limit the inner sleeve to move up and down; a fixed disc is clamped in the inner sleeve, the lower surface of the fixed disc is elastically connected with a movable disc through a spring, and a driving mechanism is arranged between the movable disc and the rotary disc; through rotating the inner skleeve to the removal is moved to the drive conveyer belt simultaneously, the activity dish reciprocates, thereby drives the blood collection needle and extracts from the test tube, and inserts next test tube. The utility model discloses the one hand tube replacement action when can optimizing single blood sampling prevents to deviate from the blood vessel because of the inconvenient blood taking needle that leads to of tube replacement when taking a blood sample can not be fine fixed.

Description

Semi-automatic blood sampling device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to semi-automatic blood sampling device.

Background

The venous blood taking needle is used for collecting blood samples in the medical examination process, the blood taking needle at the top end of the venous blood taking needle is used for puncturing blood vessels, the tail end transparent hose is connected with the tail needle, the tail needle is wrapped by the rubber hose, the needle cap is sleeved outside the tail needle and used for puncturing a vacuum blood taking test tube, and the blood is sucked into the tube by using negative pressure in the test tube.

At present, when a patient needs to collect a large amount of blood, a hospital blood collecting staff needs to replace a test tube for containing the blood many times in the process of collecting the blood, when one test tube collects the blood, a blood collecting needle inserted into the test tube needs to be pulled out and rapidly inserted into the next test tube, the process needs to be completed within 3-5 seconds, because the working experience of the blood collecting staff is different, tube replacement actions of some blood collecting staff are unskilled, the blood collecting needle is often fixed by one hand during blood collection, the tube replacement work is completed by the other hand, the blood collecting needle cannot be well fixed and is separated from a blood vessel, the puncture injury of the blood collecting staff is easily caused, and the injury caused by secondary puncture of the patient is increased.

SUMMERY OF THE UTILITY MODEL

The invention aims to solve the problems and provide a semi-automatic blood sampling device which can optimize the tube replacement action by one hand when one person takes blood and prevent the blood sampling needle from dropping out of the blood vessel due to the inconvenience of tube replacement.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a semi-automatic blood sampling device comprises an outer sleeve, an inner sleeve and a central column;

the upper end of the outer sleeve is fixedly connected with a fixing piece which is sleeved at the upper end of the central column and used for limiting the rotation of the central column, and the lower end of the outer sleeve is provided with a conveyor belt positioned below the turntable in a penetrating manner; the conveying belt is provided with a plurality of placing grooves which are uniformly distributed and arranged along the length direction of the conveying belt and used for placing test tubes; the conveying belt is in transmission connection with the outer peripheral surface of the lower end of the inner sleeve, so that the conveying belt can be driven to move left and right by rotating the inner sleeve;

the inner sleeve is coaxially inserted into the top wall of the outer sleeve, one end of the inner sleeve, which extends into the outer sleeve, is provided with a turntable which is integrally formed with the inner side wall and the outer side wall of the inner sleeve, and the peripheral surface of the turntable is clamped with the inner side wall of the outer sleeve so as to limit the inner sleeve to move up and down; a fixed disc coaxially and rotatably arranged is clamped in the inner sleeve, the lower surface of the fixed disc is elastically connected with a movable disc integrally formed with the central column through a spring sleeved on the central column, and a driving mechanism is arranged between the movable disc and the rotary disc, so that the inner sleeve is rotated to drive the rotary disc to rotate and can drive the movable disc to move up and down through the driving mechanism;

the central column is axially arranged in the inner sleeve in a penetrating way; a blood taking needle for inserting into a vein is arranged on the end face of the upper end of the central column, and a blood collecting needle for inserting into a test tube is arranged on the end face of the lower end of the central column; the central column is of a hollow structure, and the blood taking needle and the blood collecting needle are both communicated with the inner cavity of the central column; through rotating the inner skleeve to the removal is moved to the drive conveyer belt simultaneously, the activity dish reciprocates, thereby drives the blood collection needle and extracts from the test tube, and inserts next test tube.

Preferably, the driving mechanism comprises an arc-shaped convex strip and two convex blocks, the arc-shaped convex strip is arranged on the upper surface of the turntable and is positioned in the inner sleeve, the arc-shaped convex strip extends along the circumferential direction of the inner sleeve, and the height of the arc-shaped convex strip is gradually reduced; two lugs are arranged on two sides of the lower surface of the movable plate, and the bottom of the lugs can be abutted against the upper side of the arc-shaped convex strip.

Preferably, the fixing part comprises two L-shaped brackets which are symmetrically and fixedly connected to two sides of the end face of the upper end of the outer sleeve, one ends, far away from the outer sleeve, of the two brackets are fixedly connected through fixing blocks, polygonal through holes are formed in the upper side and the lower side of each fixing block in a penetrating mode, an anti-rotation portion with the cross section shape matched with the shape of each through hole is arranged at the upper end of the central column, and the fixing blocks are sleeved on the anti-rotation portions through the through holes to limit rotation.

Preferably, the edge of the top surface of the conveying belt is convexly provided with a vertically arranged spur rack along the length direction of the conveying belt, and the outer peripheral surface of the lower end of the inner sleeve is provided with a tooth socket meshed with the spur rack, so that the inner sleeve can be rotated to drive the conveying belt to move left and right through the clamping fit of the spur rack and the tooth socket.

Preferably, the lower end face of the outer sleeve is provided with an anti-skidding rubber pad, so that the friction force between the anti-skidding rubber pad and a supporting object is increased, and the outer sleeve is prevented from being driven to rotate in the process of rotating the inner sleeve.

Preferably, the Teflon layer is laid on the bottom surface of the conveyor belt, so that the friction force between the conveyor belt and a supporting object is reduced, and the inner sleeve can be rotated more smoothly and more easily.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model provides a pair of semi-automatic blood sampling device can remove about the drive conveyer belt simultaneously through rotating the inner skleeve, the activity dish reciprocates to drive collection blood needle and extract from the test tube of collecting full blood, and insert next empty test tube, compare with prior art, the one hand tube replacement action when can optimizing single blood sampling, because of the inconvenient blood taking needle that leads to of tube replacement can not be very well fixed and deviate from the blood vessel during preventing the blood sampling.

Drawings

Fig. 1 is a cross-sectional view taken along a-a of fig. 2 according to the present invention;

fig. 2 is a side schematic view of the present invention;

fig. 3 is an overall schematic view of the present invention;

fig. 4 is an exploded schematic view of the present invention;

fig. 5 is a schematic structural view of the arc-shaped convex strip of the present invention.

In the attached drawings, 1, an outer sleeve; 2. an inner sleeve; 21. a turntable; 211. arc-shaped convex strips; 22. fixing the disc; 23. a spring; 3. a central column; 31. a movable tray; 311. a bump; 32. a blood collection needle; 33. a blood collection needle; 34. a rotation prevention part; 4. a fixing member; 41. a support; 42. a fixed block; 421. a through hole; 5. a conveyor belt; 51. a placement groove; 52. a test tube; 53. straight rack; 54. tooth socket

Detailed Description

The semi-automatic blood sampling device provided by the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-3, the semi-automatic blood collection device provided by the present embodiment comprises an outer sleeve 1, an inner sleeve 2 and a central column 3;

the upper end of the outer sleeve 1 is fixedly connected with a fixing piece 4 which is sleeved on the upper end of the central column 3 and used for limiting the rotation of the central column 3, and the lower end of the outer sleeve 1 is provided with a conveyor belt 5 positioned below the turntable 21 in a penetrating way; the conveyor belt 5 is provided with a plurality of placing grooves 51 which are uniformly distributed and arranged along the length direction and used for placing test tubes 52; the conveyor belt 5 is in transmission connection with the outer peripheral surface of the lower end of the inner sleeve 2, so that the conveyor belt 5 can be driven to move left and right by rotating the inner sleeve 2;

the inner sleeve 2 is coaxially inserted into the top wall of the outer sleeve 1, one end of the inner sleeve 2, which extends into the outer sleeve 1, is provided with a turntable 21 which is integrally formed with the inner side wall and the outer side wall of the inner sleeve 2, and the outer peripheral surface of the turntable 21 is clamped with the inner side wall of the outer sleeve 1 so as to limit the inner sleeve 2 to move up and down; a fixed disc 22 coaxially and rotatably arranged is clamped in the inner sleeve 2, the lower surface of the fixed disc 22 is elastically connected with a movable disc 31 integrally formed with the central column 3 through a spring 23 sleeved on the central column 3, and a driving mechanism is arranged between the movable disc 31 and the rotary disc 21, so that the rotary inner sleeve 2 is rotated to drive the rotary disc 21 to rotate and drive the movable disc 31 to move up and down through the driving mechanism;

the central column 3 is axially arranged in the inner sleeve 2 in a penetrating way; a blood taking needle 32 for inserting a vein is arranged on the upper end face of the central column 3, and a blood collecting needle 33 for inserting a test tube 52 is arranged on the lower end face; the central column 3 is a hollow structure, and the blood taking needle 32 and the blood collecting needle 33 are both communicated with the inner cavity of the central column 3; by rotating the inner sleeve 2 to simultaneously drive the conveyor belt 5 to move left and right and the movable plate 31 to move up and down, the blood collection needle 33 is pulled out of the test tube 52 and inserted into the next test tube 52.

Further, the driving mechanism comprises an arc-shaped convex strip 211 and two convex blocks 311, the arc-shaped convex strip 211 is arranged on the upper surface of the turntable 21 and is positioned in the inner sleeve 2, the arc-shaped convex strip 211 extends along the circumferential direction of the inner sleeve 2, and the height of the arc-shaped convex strip 211 is gradually reduced; two lugs 311 are disposed on two sides of the lower surface of the movable plate 31, and the bottoms of the lugs can be abutted to the upper side of the arc-shaped protruding strip 211.

Further, the fixing part 4 comprises two supports 41 which are symmetrically and fixedly connected with two L-shaped structures on two sides of the end face of the upper end of the outer sleeve 1, one ends of the two supports 41 far away from the outer sleeve 1 are fixedly connected through fixing blocks 42, polygonal through holes 421 are formed in the upper side and the lower side of each fixing block 42 in a penetrating mode, the upper end of the center post 3 is provided with anti-rotation parts with cross sections matched with the shapes of the through holes 421, and the fixing blocks 42 are sleeved on the anti-rotation parts through the through holes 421 to limit the rotation of.

Further, the top edge of the conveyor belt 5 is convexly provided with a vertically arranged spur rack 53 along the length direction, and the outer peripheral surface of the lower end of the inner sleeve 2 is provided with a tooth groove 54 meshed with the spur rack 53, so that the inner sleeve 2 can be rotated to drive the conveyor belt 5 to move left and right through the clamping fit of the spur rack 53 and the tooth groove 54.

Furthermore, because the outer sleeve 1 is easily driven to rotate in the process of rotating the inner sleeve 2, the lower end surface of the outer sleeve 1 can be provided with an anti-skid rubber pad made of rubber materials, so that the friction force between the lower end surface of the outer sleeve 1 and a supporting object is increased.

Further, in order to make the inner sleeve 2 rotate more smoothly and labor-saving, a teflon layer made of teflon material can be laid on the bottom surface of the conveyor belt 5, the friction coefficient of the teflon is extremely low, and the friction force between the bottom surface of the conveyor belt 5 and a supporting object can be reduced.

The utility model discloses a working process and principle:

firstly, a blood taking needle 32 is inserted into a vein of a patient by one hand and is fixed to draw blood, the blood flows into a test tube 52 through a blood collecting needle 33 via a central column 3, after the test tube 52 collects full blood, the upper end of an inner sleeve 2 is clockwise rotated by the other hand, a lug 311 on the right side drives the central column 3 to move upwards under the extrusion of an arc-shaped convex strip 211, so that the blood collecting needle 33 extracts the test tube 52 collecting full blood, the conveyor belt 5 is driven to move rightwards through the transmission connection of the lower end and the conveyor belt 5 while an inner sleeve 2 rotates, in the moving process of the conveyor belt 5, the butt joint of the lug 311 and the arc-shaped convex strip 211 gradually rises from the head end to the tail end of the arc-shaped convex strip 211, when the butt joint rises to the highest point of the tail end of the arc-shaped convex strip 211, the conveyor belt 5 drives a next empty test tube 52 to move under the central column 3, at the moment, the inner sleeve, so that the blood collection needle 33 is inserted into the test tube 52 directly below the central column 3, and finally the inner sleeve 2 is released, and the operation is repeated after the empty test tube 52 has collected the full blood.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A semi-automatic blood sampling device, its characterized in that: comprises an outer sleeve (1), an inner sleeve (2) and a central column (3);

the upper end of the outer sleeve (1) is fixedly connected with a fixing piece (4) which is sleeved at the upper end of the central column (3) and used for limiting the rotation of the central column (3), and the lower end of the outer sleeve (1) is provided with a conveyor belt (5) which is positioned below the turntable (21) in a penetrating manner; the conveying belt (5) is provided with a plurality of placing grooves (51) which are uniformly distributed and arrayed along the length direction and used for placing test tubes (52); the conveyor belt (5) is in transmission connection with the outer peripheral surface of the lower end of the inner sleeve (2), so that the conveyor belt (5) can be driven to move left and right by rotating the inner sleeve (2);

the inner sleeve (2) is coaxially inserted into the top wall of the outer sleeve (1), one end of the inner sleeve (2) extending into the outer sleeve (1) is provided with a turntable (21) integrally formed with the inner side wall and the outer side wall of the inner sleeve (2), and the outer peripheral surface of the turntable (21) is clamped with the inner side wall of the outer sleeve (1) so as to limit the inner sleeve (2) to move up and down; a fixed disc (22) which is coaxially and rotatably arranged is clamped in the inner sleeve (2), the lower surface of the fixed disc (22) is elastically connected with a movable disc (31) which is integrally formed with the central column (3) through a spring (23) sleeved on the central column (3), and a driving mechanism is arranged between the movable disc (31) and the rotary disc (21), so that the inner sleeve (2) is rotated to drive the rotary disc (21) to rotate and can drive the movable disc (31) to move up and down through the driving mechanism;

the central column (3) is axially arranged in the inner sleeve (2) in a penetrating manner; a blood taking needle (32) for inserting a vein is arranged on the upper end face of the central column (3), and a blood collecting needle (33) for inserting a test tube (52) is arranged on the lower end face of the central column; the central column (3) is of a hollow structure, and the blood taking needle (32) and the blood collecting needle (33) are both communicated with the inner cavity of the central column (3); the inner sleeve (2) is rotated to drive the conveyor belt (5) to move left and right and the movable disc (31) to move up and down simultaneously, so that the blood collecting needle (33) is driven to be pulled out of the test tube (52) and to be inserted into the next test tube (52).

2. A semi-automatic blood collection device according to claim 1, wherein: the driving mechanism comprises an arc-shaped convex strip (211) and two convex blocks (311), the arc-shaped convex strip (211) is arranged on the upper surface of the turntable (21) and is positioned in the inner sleeve (2), the arc-shaped convex strip (211) extends along the circumferential direction of the inner sleeve (2), and the height of the arc-shaped convex strip (211) is gradually reduced; two lug (311) set up in activity dish (31) lower surface both sides, and the bottom all can with arc sand grip (211) upside butt.

3. A semi-automatic blood collection device according to claim 1, wherein: mounting (4) are including support (41) of two L shape structures of symmetry fixed connection in outer sleeve (1) upper end terminal surface both sides, and fixed block (42) fixed connection is passed through to the one end that outer sleeve (1) was kept away from in two support (41), both sides run through and are equipped with polygonal through-hole (421) about fixed block (42), center post (3) upper end has the anti-portion of changeing that cross sectional shape and through-hole (421) shape suited, fixed block (42) cup joint on the portion of changeing through-hole (421) to restriction center post (3) rotate.

4. A semi-automatic blood collection device according to claim 1, wherein: conveyer belt (5) top surface edge is equipped with spur rack (53) of vertical setting along its length direction is protruding, inner skleeve (2) lower extreme outer peripheral face is equipped with tooth's socket (54) with spur rack (53) interlock for rotate inner skleeve (2) can pass through the joint cooperation of spur rack (53) and tooth's socket (54) and drive conveyer belt (5) and remove.

5. A semi-automatic blood collection device according to claim 1, wherein: the conveyor belt is characterized in that an anti-skid rubber pad is arranged on the lower end face of the outer sleeve (1), and a Teflon layer is laid on the bottom face of the conveyor belt.

6. A semi-automatic blood collection device according to claim 1, wherein: the bottom surface of the conveyor belt (5) is paved with a Teflon layer.