CN112353389A

CN112353389A - Multifunctional hemostix for collecting umbilical cord blood

Info

Publication number: CN112353389A
Application number: CN202011365853.7A
Authority: CN
Inventors: 谭学蓉; 李乔红; 张莉
Original assignee: Yaan Peoples Hospital
Current assignee: Yaan Peoples Hospital
Priority date: 2020-11-29
Filing date: 2020-11-29
Publication date: 2021-02-12

Abstract

The invention relates to the field of neonatal auxiliary equipment. The purpose is to provide a multifunctional blood collection device for umbilical cord blood collection that is convenient for fixation and needle insertion. One end is fixed on the base, the two sides of the other end are provided with two arc-shaped upper clips with downward openings, the middle section of the movable pliers is provided with a notch for matching with the fixed pliers, and the fixed pliers are in the shape of The scissors pass through the gap, and are hinged with the movable pliers through the first hinge shaft; the two sides of the movable pliers close to one end of the upper clip are provided with two lower clips corresponding to the upper clip, and the other end is arranged between the fixed pliers There is a clamp control assembly. The invention can effectively realize the fixing and clamping of the umbilical cord, and can effectively guide the needle insertion of the blood collection needle, improve the collection efficiency of the umbilical cord blood, and reduce the work difficulty.

Description

Multifunctional hemostix for collecting umbilical cord blood

Technical Field

The invention relates to the field of auxiliary equipment for newborn pediatrics, in particular to a multifunctional blood collector for collecting umbilical cord blood.

Background

Cord blood is the blood remaining in the placenta and umbilical cord after the fetus is delivered, the cord ligated and severed. Recent studies have found that cord blood contains a large amount of hematopoietic stem cells which can reconstitute the human hematopoietic and immune systems, and that it can be used for hematopoietic stem cell transplantation to treat various diseases. Therefore, recently, umbilical cord blood has been receiving increasing attention as an important source of hematopoietic stem cells, particularly as a source of hematopoietic stem cells having no relationship to blood. However, no special blood sampling device is available in the market at present, which causes difficulty in sampling umbilical cord blood. As is well known, there are two main difficulties in collecting cord blood due to the characteristics of the umbilical cord: 1. the surface of the umbilical cord is very smooth, and the effective fixation of the umbilical cord is difficult to realize by hands or common instruments; 2. also, because the surface of the umbilical cord is smooth, when a blood taking needle is used for puncture, the needle is difficult to insert and is easy to lose position. Therefore, the requirement on the operation experience of medical staff is extremely high in the current umbilical cord blood collection process.

Disclosure of Invention

The invention aims to provide a multifunctional blood collector for collecting umbilical cord blood, which is convenient to fix and insert a needle.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a multifunctional hemostix for collecting umbilical cord blood comprises a base and an umbilical cord fixing device arranged on the base, wherein the umbilical cord fixing device comprises a fixed clamp and a movable clamp, one end of the fixed clamp is fixedly arranged on the base, two sides of the other end of the fixed clamp are provided with two arc-shaped upper clamps with downward openings, the middle section of the movable clamp is provided with a notch matched with the fixed clamp, and the fixed clamp penetrates through the notch in a scissor shape and is hinged with the movable clamp through a first hinge shaft; two lower clamping clips are arranged on two sides of the movable clamp close to one end of the upper clamping clip and correspond to the upper clamping clip, and a clamping control assembly is arranged between the other end of the movable clamp and the fixed clamp; the lower clamp is also arc-shaped, and the opening of the lower clamp faces upwards; arc-shaped clamping air bags are arranged in the upper clamping clamp and the lower clamping clamp, and the clamping air bags are communicated with an air outlet end of an air pump arranged on the base through air conveying pipes; and the blood sampling area is internally provided with a needle inserting auxiliary assembly used for guiding the blood sampling needle.

Preferably, an arc-shaped sliding groove extending along the length direction of the upper clamping clip is formed in the side wall of one side, close to the blood sampling area, of the upper clamping clip, an adjusting groove extending along the length direction of the upper clamping clip is further formed in the top surface of the upper clamping clip, and the bottom of the adjusting groove is communicated with the sliding groove;

the needle insertion auxiliary assembly comprises a sliding block matched with the sliding groove, the top of the sliding block is provided with an adjusting screw rod, the adjusting screw rod extends out of the adjusting groove to be clamped, and the end part of the adjusting screw rod is matched with a fastening nut; the outward side of the sliding block is also provided with a telescopic rod extending along the width direction of the blood sampling area, the outer end of the telescopic rod is hinged with one end of the swinging frame through a second hinge shaft, and the other end of the swinging frame is hinged with one side of the mounting ring through a third hinge shaft; a guide disc is arranged in the mounting ring, and a circle of bayonets matched with the mounting ring are arranged at the edge of the guide disc and clamped on the mounting ring through the bayonets; a damping rubber ring is arranged between the inner side wall of the mounting ring and the outer side wall of the guide disc; a needle inserting hole which obliquely penetrates through the upper surface and the lower surface of the guide disc is formed in the guide disc;

the needle inserting auxiliary assembly further comprises a torsion spring which is arranged at the second hinge shaft and used for driving the swing frame to press downwards.

Preferably, the upper surface of the guide disc is further provided with a vertical deflector rod.

Preferably, the telescopic rod is a telescopic rod with damping.

Preferably, the clamping control assembly comprises an extension plate which is arranged at one end of the movable clamp far away from the lower clamping, a strip-shaped yielding port is formed in the center of the extension plate, a vertical clamping screw rod is arranged on the upper surface of the fixed clamp opposite to the yielding port, and a clamping nut is matched on the clamping screw rod.

Preferably, the bottom of the clamping nut is hemispherical.

Preferably, a screwing rod is arranged on the side wall of the clamping nut.

Preferably, the base is further provided with a storage cabinet, the storage cabinet is evenly provided with a plurality of storage drawers, and the fixing clamp is fixedly installed at the top of the storage cabinet.

Preferably, the air pump is fixedly installed on the base on one side of the storage cabinet.

Preferably, the umbilical cord fixing device is further provided with a collecting tank below the umbilical cord fixing device, and the collecting tank is in a strip shape and extends along the length direction of the umbilical cord.

The umbilical cord blood taking device has the beneficial effects that the umbilical cord can be effectively and fixedly clamped, the needle insertion of the blood taking needle can be effectively guided, the umbilical cord blood collecting efficiency is improved, and the working difficulty is reduced. Specifically, in the using process, the umbilical cord is placed between the upper clamp and the lower clamp, the movable clamp is driven to move by the clamping control assembly, the umbilical cord is clamped preliminarily, then the clamping air bags in the upper clamp and the lower clamp are inflated by the air pump, the clamping air bags are expanded, the pressure on the umbilical cord is kept, the umbilical cord is clamped tightly on the premise of not damaging the umbilical cord, and the umbilical cord is prevented from sliding effectively. After the umbilical cord clamp is fastened and fixed, the invention utilizes the needle insertion auxiliary assembly to guide the blood taking needle, thereby ensuring that the blood taking needle does not slip or lose position and ensuring the smooth puncture. The invention reduces the difficulty of umbilical cord blood collection operation, improves the efficiency of umbilical cord blood collection, has simple and compact structure, and is suitable for popularization and promotion in obstetrics and pediatrics of various hospitals.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the umbilical cord fixation device in a condition where the needle insertion aid assembly is not assembled;

FIG. 3 is a top view of the umbilical cord fixation device in a condition in which the needle insertion aid assembly is assembled;

fig. 4 is a schematic structural view of the needle insertion assisting assembly.

Detailed Description

Referring to fig. 1-4, a multifunctional blood collector for collecting umbilical cord blood comprises a base 1 and an umbilical cord fixing device disposed on the base 1, wherein a support frame can be disposed on the base 1, and the umbilical cord fixing device is mounted on the base 1 through the support frame; in order to further improve the utilization rate of the space, a storage cabinet 30 may be further disposed on the base 1, a plurality of storage drawers 31 are uniformly disposed on the storage cabinet 30, and at this time, the umbilical cord fixing device may be directly mounted on the top of the storage cabinet 30. The base 1 serves as a mounting base of the present invention, and in order to facilitate stable fixing thereof, a magnetic attraction block, a suction cup and other components may be provided at the bottom thereof.

Referring to fig. 1 and 2, the umbilical cord fixing device includes a fixing clamp 2 and a movable clamp 3, one end of the fixing clamp 2 is fixedly disposed on the base 1, two arc-shaped upper clamps 4 with downward openings are disposed on two sides of the other end of the fixing clamp, and when the storage cabinet 30 is disposed, the fixing clamp 2 is fixedly mounted on the top of the storage cabinet 30. The middle section of activity pincers 3 is provided with one and fixed pincers 2 matched with breach 5, fixed pincers 2 are scissors form and pass breach 5 to constitute through first articulated shaft 6 and activity pincers 3 and articulate, carry out position control through the tip to activity pincers 3, can realize that the clamp of fixed pincers 2 and activity pincers 3 is closed. The movable pliers 3 are provided with two lower clamping clips 7 corresponding to the upper clamping clip 4 at two sides of one end of the upper clamping clip 4, and a clamping control assembly is arranged between the other end of the upper clamping clip 4 and the fixed pliers 2, wherein the clamping control assembly is a structure for controlling the end position of the movable pliers 3, and the clamping control assembly has more specific modes and is explained in detail below.

As shown in fig. 2, the lower clip 7 of the movable clamp 3 is also arc-shaped and has an opening facing upward. Go up and press from both sides card 4 and press from both sides card 7 and accomplish the preliminary centre gripping to the navel cord jointly, in order to improve the cramping nature, prevent that the rigidity centre gripping from causing the damage to the navel cord, the inside of going up and pressing from both sides card 4 and pressing from both sides card 7 down all is provided with curved tight gasbag 8 of clamp, tight gasbag 8 of clamp gives vent to anger through gas-supply pipe 9 and the air pump 10 that sets up on base 1 and holds the intercommunication, air pump 10 fixed mounting is on the base 1 of accomodating cabinet 30 one side. And the air charging and discharging port of the clamping air bag 8 can extend to the outside of the upper clamp and the lower clamp, so that the arrangement is convenient. Two sets of go up clamp 4 and constitute the blood sampling district down between clamp 7, be provided with the needle inserting auxiliary assembly who is used for leading the blood taking needle in the blood sampling district, as the name suggests, needle inserting auxiliary assembly just is used for carrying out position control to the needle inserting of blood taking needle, prevents the structure of blood taking needle activity dislocation, and its specific structure is also more, sees the explanation below for details.

In the using process of the umbilical cord clamp, an umbilical cord is placed between the upper clamp 4 and the lower clamp 7, the movable clamp 3 is driven to move by the clamping control assembly, so that the umbilical cord is clamped preliminarily, and then the clamping air bags 8 in the upper clamp 4 and the lower clamp 7 are inflated by the air pump 10 to expand the clamping air bags 8 and keep the pressure on the umbilical cord, so that the umbilical cord is clamped tightly on the premise of not damaging the umbilical cord, and the umbilical cord is prevented from sliding effectively. After the umbilical cord clamp is fastened and fixed, the invention utilizes the needle insertion auxiliary assembly to guide the blood taking needle, thereby ensuring that the blood taking needle does not slip or lose position and ensuring the smooth puncture. The invention reduces the difficulty of umbilical cord blood collection operation, improves the efficiency of umbilical cord blood collection, has simple and compact structure, and is suitable for popularization and promotion in obstetrics and pediatrics of various hospitals.

The clamping control assembly for controlling the movement of the movable clamp 3 has more structures, and can be a spiral spring arranged between the end parts of the movable clamp 3 and the fixed clamp 2, and the elastic force of the spiral spring drives the movable clamp 3 and the fixed clamp to be folded to realize clamping. Or a handle arranged at the end part of the movable clamp 3, and the movable clamp 3 is driven to move by the handle. Of course, the mode of adopting the handle needs medical personnel to press for a long time, and it is comparatively inconvenient to use, and its clamp force of mode that adopts coil spring relies on coil spring's resilience force completely, does not control well. In order to free hands and improve the pressure control precision, the invention preferably provides that, as shown in fig. 2 and 1, the clamping and closing control assembly comprises an extension plate 25 arranged at one end of the movable clamp 3 far away from the lower clamp 7, a strip-shaped abdicating port 26 is arranged in the center of the extension plate 25, a vertical clamping and closing screw 27 is arranged on the upper surface of the fixed clamp 2 opposite to the abdicating port 26, and a clamping and closing nut 28 is adapted on the clamping and closing screw 27. The height of the clamping nut 28 on the clamping screw 27 is adjusted by rotating the clamping nut 28, so that the clamping nut 28 drives the extension plate 25 and thus the movable clamp 3. The bottom of the clamping nut 28 may be configured to be hemispherical to improve its smoothness during contact with the extension plate 25. In order to facilitate the screwing of the clamping nut 28, the side wall of said clamping nut 28 is provided with a screwing rod 29.

In the invention, the needle insertion auxiliary component can be a guide tube capable of adjusting the angle of the needle insertion auxiliary component relative to the umbilical cord, the umbilical cord is punctured by a blood taking needle after the blood taking needle passes through the guide tube, the direction of the guide tube can be adjusted by connecting the guide tube with a plastic connecting rod, and the angle of the guide tube is adjusted by the plastic connecting rod. However, as shown in fig. 2, 3 and 4, an arc-shaped sliding groove 11 extending along the length direction of the upper clip 4 is disposed on a side wall of one side of the upper clip 4 close to the blood collection area, and an adjusting groove 12 extending along the length direction of the upper clip 4 is further disposed on the top surface of the upper clip 4, and the bottom of the adjusting groove 12 is intersected with the sliding groove 11.

The needle inserting auxiliary assembly comprises a sliding block 13 matched with the sliding groove 11, an adjusting screw rod 14 is arranged at the top of the sliding block 13, the adjusting screw rod 14 extends out of the adjusting groove 12 to form the upper clamping clamp 4, and a fastening nut 15 is matched with the end part of the adjusting screw rod. The sliding block 13 can move in the sliding groove 11, so that the requirement of the overall position adjustment of the needle inserting auxiliary assembly is met, and the sliding block 13 can be locked by tightening the nut 15 after the sliding block is moved in place. The outward side of the sliding block 13 is further provided with a telescopic rod 16 extending along the width direction of the blood sampling area, and the length of the telescopic rod 16 is changed to adjust the length position of the needle insertion auxiliary assembly extending into the blood sampling area. The telescopic link 16 can adopt the spout slide bar formula telescopic link, also can be for taking damped bushing type telescopic link 16, take damping i.e. need exert certain power and just can drive telescopic link 16 flexible, thereby guarantee its stability, form damped mode and can be set up the one deck rubber layer between two-layer sleeve pipe, utilize the frictional force on rubber layer to form the damping, also can increase roughness in order to form the damping on the contact surface between two-layer sleeve pipe, its concrete structure can carry out the adaptability design according to actual demand for technical staff in the field, no longer describe herein.

As shown in fig. 4, the outer end of the telescopic rod 16 is hinged to one end of a swing frame 18 through a second hinge shaft 17, and the other end of the swing frame 18 is hinged to one side of a mounting ring 20 through a third hinge shaft 19. A guide disc 21 is arranged in the mounting ring 20, and a circle of bayonets matched with the mounting ring 20 are arranged at the edge of the guide disc 21 and are clamped on the mounting ring 20 through the bayonets. And a damping rubber ring 22 is arranged between the inner side wall of the mounting ring 20 and the outer side wall of the guide disc 21. The guide disc 21 is provided with a needle inserting hole 23 which obliquely penetrates through the upper surface and the lower surface of the guide disc 21. The needle insertion assisting assembly further comprises a torsion spring provided at the second hinge shaft 17 for driving the swing frame 18 to be pressed downward.

When the needle insertion auxiliary assembly is used, after the umbilical cord is clamped stably, the position of the umbilical vein is found. The medical staff slides the sliding block 13 according to the position of the umbilical vein, so that the position of the needle insertion auxiliary assembly roughly corresponds to the position of the umbilical vein, and then the sliding block 13 is fixed. Then, the length of the telescopic rod 16 is adjusted, so that the mounting ring 20 on the needle insertion assisting assembly can be extended to the needle insertion position, and the length of the telescopic rod 16 is adjusted to the position. Under the action of the torsion spring, the swing frame 18 drives the mounting ring 20 to press downwards, and the swing frame 18 can drive the mounting ring 20 to cling to the surface of the umbilical cord due to the fact that the mounting ring 20 is hinged to the swing frame 18. Then, the medical care personnel rotates the guide disc 21 to make the needle inlet hole 23 on the guide disc consistent with the puncture path of the umbilical vein, and then the subsequent needle inserting operation of the blood taking needle can be carried out. In the process of needle insertion of the blood taking needle, the blood taking needle is limited and guided by the needle inlet hole 23, so that the phenomenon of slippage and dislocation in the contact process of the umbilical cord can be avoided, and the smoothness of needle insertion is ensured. Of course, in order to facilitate the rotation of the guiding disc 21, the upper surface of said guiding disc 21 may also be provided with a vertical dial 24.

In addition, considering that a part of body fluid drops on the surface of the umbilical cord during the clamping process, in order to keep the umbilical cord clean, a collecting groove 32 is arranged below the umbilical cord fixing device, and the collecting groove 32 is in a strip shape and extends along the length direction of the umbilical cord.

Claims

1. A multifunctional blood sampler for umbilical cord blood collection, comprising a base (1) and an umbilical cord fixing device arranged on the base (1), characterized in that: the umbilical cord fixing device comprises a fixing forceps (2) and a movable umbilical cord fixing device. A pliers (3), one end of the fixed pliers (2) is fixedly arranged on the base (1), two sides of the other end are provided with two arc-shaped upper clips (4) with downward openings, the movable pliers The middle section of (3) is provided with a notch (5) which is matched with the fixing forceps (2). The pliers (3) are hinged; two lower clips (7) are arranged on both sides of the movable pliers (3) close to one end of the upper clip (4) corresponding to the upper clip (4), and the other end is connected with the fixed pliers (2). A clipping control assembly is arranged between ); the lower clip (7) is also arc-shaped, and the opening is upward; the interior of the upper clip (4) and the lower clip (7) are provided with arc-shaped The clamping airbag (8) is connected with the air outlet end of the air pump (10) arranged on the base (1) through the air delivery pipe (9); the two sets of upper clamps (4) and A blood collection area is formed between the lower clips (7), and a needle insertion auxiliary assembly for guiding the blood collection needle is arranged in the blood collection area.

2. The multifunctional blood sampler for umbilical cord blood collection according to claim 1, characterized in that: a side wall of one of the upper clips (4) close to the blood collection area is provided with an edge along the upper clips (4). ) arc-shaped sliding slot (11) extending in the length direction, the top surface of the upper clip (4) is also provided with an adjustment slot (12) extending along the length direction of the upper clip (4), the adjustment slot (12) The bottom of the slide groove (11) intersects;

The needle insertion auxiliary assembly includes a sliding block (13) matched with the sliding groove (11), an adjustment screw (14) is provided on the top of the sliding block (13), and the adjustment screw (14) is formed by the adjustment groove (14). 12) Extend the upper clip (4), and the end is fitted with a set nut (15); the outward side of the sliding block (13) is also provided with a telescopic rod ( 16), the outer end of the telescopic rod (16) is hinged to one end of the swing frame (18) through the second hinge shaft (17), and the other end of the swing frame (18) is connected to the swing frame (18) through the third hinge shaft (19). One side of the mounting ring (20) is hinged; the mounting ring (20) is provided with a guide plate (21), and the edge of the guide plate (21) is provided with a ring of bayonet which is matched with the mounting ring (20), and is clamped on the mounting ring (20) through the bayonet; a damping rubber ring (22) is arranged between the mounting ring (20) and the inner side wall and the outer side wall of the guide plate (21); the guide plate (21) 21) A needle inlet hole (23) which penetrates the upper and lower surfaces of the guide plate (21) in an oblique direction is arranged in it;

The needle insertion auxiliary assembly further comprises a torsion spring arranged at the second hinge shaft (17) and used for driving the swing frame (18) to press down.

3 . The multifunctional blood sampler for umbilical cord blood collection according to claim 2 , wherein a vertical lever ( 24 ) is further provided on the upper surface of the guide plate ( 21 ). 4 .

4. The multifunctional blood sampler for umbilical cord blood collection according to claim 3, wherein the telescopic rod (16) is a sleeve-type telescopic rod with damping.

5 . The multifunctional blood sampler for umbilical cord blood collection according to claim 4 , wherein the clamping control assembly comprises an extension plate ( 25), the center of the extension plate (25) is provided with a strip opening (26), and a vertical clamping screw ( 27), a clamping nut (28) is fitted on the clamping screw (27).

6. The multifunctional blood sampler for umbilical cord blood collection according to claim 5, wherein the bottom of the clamping nut (28) is hemispherical.

7 . The multifunctional blood sampler for umbilical cord blood collection according to claim 6 , wherein a screw rod ( 29 ) is provided on the side wall of the clamping nut ( 28 ). 8 .

8. The multifunctional blood sampler for umbilical cord blood collection according to claim 7, characterized in that: the base (1) is further provided with a storage cabinet (30), and the storage cabinet (30) is evenly arranged on the storage cabinet (30). There are several storage drawers (31), and the fixing clamps (2) are fixedly installed on the top of the storage cabinet (30).

9 . The multifunctional blood sampler for umbilical cord blood collection according to claim 8 , wherein the air pump ( 10 ) is fixedly installed on the base ( 1 ) on one side of the storage cabinet ( 30 ). 10 .

10 . The multifunctional blood sampler for umbilical cord blood collection according to claim 9 , wherein a collection groove (32) is further provided below the umbilical cord fixing device, and the collection groove (32) is strip-shaped. 11 . , and extend along the length of the umbilical cord.