CN105730941A - Automatic separator for needles of infusion apparatus - Google Patents

Abstract

An automatic needle separation machine for infusion sets, comprising a housing (1), an infusion bag placement plate (2), a main slide rail (3), a blade assembly (6), a blade stopper (4), and a sharps collection box (5 ) and the auxiliary slide rail (7); the main slide rail is obliquely placed in the housing, and the infusion bag placement plate slides obliquely according to the main slide rail. There is a rectangular hole (24) in the middle part of the bottom plate (21) of the transfusion bag placement plate, and two transfusion bag stoppers (25) are symmetrically positioned at the rear side of the front edge of the rectangular hole of the bottom plate; On the slide rail, the blade assembly includes a blade (61) and a blade fixing block (62), and the blade fixing block is sleeved on the secondary slide rail by means of a chute at the lower end. The infusion bag placement plate and the blade assembly are driven by a stepping motor and controlled by a single-chip microcomputer, which can automatically cut the infusion needle, infusion needle and ventilation needle from the infusion hose, and cut the infusion needle and ventilation needle from the bottle of the infusion bag. Pull out the mouth and wait for the whole operation process.

Description

Infusion needle automatic separation machine

technical field

The invention relates to a medical auxiliary equipment, a structure of an automatic needle separation machine for an infusion set.

Background technique

In clinical nursing work, infusion is the most basic, most common and most intensive nursing operation. According to the requirements of nosocomial infection management, in order to avoid environmental pollution and re-transmission of diseases, disposable infusion sets should be destroyed on the spot after use. Manual separation of the infusion needles is often adopted, and the needles of the infusion set are manually cut off with scissors and put into the sharps box, which may easily cause needle stick injuries during operation. In most hospitals, the medical treatment room is too far away from the work place, the workload of the ward is heavy, and the operation time is insufficient. In order to save time, the nurses concentrate the sharp tools for secondary treatment. . Once a needlestick injury occurs, it is easy to cause medical staff to be infected with blood-borne pathogens, which will bring a series of problems such as physical and mental damage to medical staff and occupational safety. Chinese patent CN201420424541.2 introduces an induction-type medical sharps separation and collection device, which consists of a box body, an induction-controlled box cover, and a panel. One side of the panel is equipped with an infusion set needle cutter, and the other side of the panel is equipped with an infusion tube. The cutter and syringe nipple syringe piston destruction hole can separate and destroy the needles of infusion set syringes, ampoule fragments, infusion tubes and syringes, etc., on one device. Chinese patent CN201520584918.5 introduces a medical infusion needle separation device, which includes a barrel body and a barrel cover buckled on the barrel body. The top surface of the barrel cover is hollow and is provided with a rotating cover. The edge protrudes inward and is fixedly connected with a cutting blade, and a limiting groove is opened on the side edge of the fan-shaped window, which can be used to quickly cut the connecting hose of the infusion needle. These two devices need to be separated by the operator after the infusion set is pulled off the infusion bag.

Contents of the invention

The invention aims to provide a structure of an automatic needle separation machine for infusion sets, which can automatically complete the separation operation of the needles of infusion sets, and improve work efficiency and safety.

The automatic needle separation machine for infusion sets includes a square housing, an infusion bag placement plate, a main slide rail, a blade assembly, a blade stopper, a sharps collection box and an auxiliary slide rail. Both the main slide rail and the auxiliary slide rail are installed in the casing, and the infusion bag placement plate, the blade assembly and the blade stopper are located above the casing. Both the main slide rail and the auxiliary slide rail are parallel to the bottom surface of the housing. The auxiliary slide rail is located at the back side of the front side of the housing and parallel to the front side. The front of the housing, the right end of the main slide rail is located at the rear of the housing. The infusion bag placement plate includes a bottom plate, a left side plate, a right side plate, a sliding frame and an infusion bag block. There is a rectangular hole in the middle of the bottom plate. The size of this hole is larger than the outer circumference of the infusion bag. There are two infusion bag blocks , the two infusion bag blocks are located symmetrically behind the front edge of the rectangular hole on the bottom plate, the distance between the two infusion bag blocks at the narrowest point is slightly larger than the bottleneck of the infusion bag; the lower edges of the two side plates They are respectively connected to the two sides of the bottom plate. The sliding frame is fixed on the outer surface of the left side plate. There is a sliding groove on the lower surface of the sliding frame. The frame fits on the main slide rail by relying on this sliding groove. The lower end of the blade stopper is fixed on the auxiliary slide rail. There is a needle fixing card on the left side of the blade stopper. The blade assembly includes a blade and a blade fixing block. There is a slide groove at the lower end of the blade fixing block, and the blade fixing block relies on this slide The slot fits on the auxiliary slide rail, the blade fixing block is located on the left side of the blade stopper, the blade fixing block can slide along the auxiliary slide rail, the blade is fixed on the front side of the blade fixing block, and the cutting edge of the blade is located on the right side of the blade . The sharps collection box is located in the housing, at the lower rear of the auxiliary slide rail.

The infusion bag placement plate and the blade assembly in the automatic needle separation machine for infusion sets can be driven by a stepping motor and controlled by a single-chip microcomputer. Put the used infusion bag together with the infusion set on the infusion bag placement plate, so that the bottle mouth and neck of the infusion bag are stuck between the two infusion bag stoppers, and the hose of the infusion set is stuck between the blade assembly and the blade stopper During this time, insert the infusion needle into the needle fixing card on the blade stopper, press the start button, and the machine can automatically complete the entire operation process, cut the infusion needle, drainage needle and ventilation needle from the infusion hose, and place them on the The infusion needle and ventilation needle are pulled out from the mouth of the infusion bag and dropped into the sharps collection box, and the infusion bag and the hose of the infusion bag fall into their respective storage containers.

Description of drawings

Fig. 1 is the first structural diagram of the infusion set needle automatic separation machine;

Fig. 2 is a top view of the infusion set needle automatic separation machine shown in Fig. 1;

Fig. 3 is a state diagram of the infusion set needle automatic separation machine shown in Fig. 1 when the infusion set needle separation operation is completed;

Fig. 4 is a schematic diagram of the positions of the main slide rail and the auxiliary slide rail in the housing;

Fig. 5 is a structural diagram of the transfusion bag placement plate;

Fig. 6 is a top view of the transfusion bag placement plate shown in Fig. 5;

Fig. 7 is a structural diagram of the blade assembly, the blade stopper and the auxiliary slide rail;

Fig. 8 is a schematic diagram of the first step of the automatic needle separation machine for infusion sets;

Fig. 9 is a schematic diagram of the second step of the automatic needle separation machine for infusion sets;

Fig. 10 is a schematic diagram of the third step of the automatic needle separation machine for infusion sets;

Fig. 11 is a schematic diagram of the fourth step of the automatic needle separation machine for infusion sets;

Fig. 12 is the second structure diagram of the infusion set needle automatic separation machine;

Fig. 13 is a top view of the infusion set needle automatic separator shown in Fig. 12;

Fig. 14 is a state diagram of the infusion set needle automatic separation machine shown in Fig. 12 when the infusion set needle separation operation is completed.

detailed description

As shown in Fig. 1, Fig. 2 and Fig. 3, this automatic infusion set needle separation machine includes a square housing 1, an infusion bag placement plate 2, a main slide rail 3, a blade assembly 6, a blade stopper 4, a sharps collection The box 5 and the auxiliary slide rail 7, the main slide rail and the auxiliary slide rail are all installed in the housing, and the infusion bag placement plate, the blade assembly and the blade stopper are located above the housing. The main slide rail 3 and the auxiliary slide rail 7 are all parallel to the bottom surface of the housing 1, as shown in Figure 4, the auxiliary slide rail 7 is located at the rear side of the front side 11 of the housing and is parallel to the front side 11, the main slide rail 3 Placed obliquely in the housing, the left end 31 of the main slide rail is located at the front of the housing, and the right end 32 of the main slide rail is located at the rear of the housing. As shown in Figures 5 and 6, the infusion bag placement plate 2 includes a bottom plate 21, a left side plate 22, a right side plate 23, a sliding frame 26 and an infusion bag stopper 25, and a rectangular hole 24 is arranged in the middle of the bottom plate 21. The size of the hole is greater than the peripheral dimension of the infusion bag, that is, the length of the hole is slightly larger than the length of the infusion bag, and the width of the hole is slightly larger than the width of the infusion bag; It is symmetrically located at the rear side of the front edge of the rectangular hole 24 of the base plate. The distance between the narrowest points between the two infusion bag stoppers 25 is slightly larger than the bottleneck of the infusion bag. The front edge of the hole 24 of the infusion bag is fixed, and the front part of the rectangular hole 24 is separated by two infusion bag stoppers to form a space 28 that can pass through the neck of the infusion bag and the mouth of the bottle; The two sides of bottom plate 21 are connected; Slide frame 26 is fixed on the outer surface of left side plate 22, and there is a slide groove 27 on the lower surface of slide frame 26, and this slide groove becomes oblique, and the oblique direction of main slide rail 3 Correspondingly, the sliding frame is sleeved on the main slide rail 3 by means of the sliding groove 27, and the transfusion bag placement plate 2 can slide obliquely along the main sliding rail 3 by means of the sliding frame. As shown in Figure 7, the lower end of the blade stopper 4 is fixed on the auxiliary slide rail 7, and a needle fixing card 41 is arranged on the left side of the blade stopper 4, and the blade assembly 6 includes a blade 61 and a blade fixing block 62, and the blade is fixed There is a chute at the lower end of the block 62, and the blade fixing block fits on the auxiliary slide rail 7 by means of this chute, and is located on the left side of the blade stopper 4. The blade fixing block can slide along the auxiliary slide rail 7, and the blade 61 is fixed on the blade On the front side of the fixed block 62, the cutting edge of the blade is located on the right side of the blade and protrudes outside the blade fixed block; The lower rear of 7, 51 is the handle of sharps collection box.

The infusion bag placement plate 2 and the blade assembly 6 in this infusion set automatic needle separation machine are respectively driven by a stepping motor and controlled by a single-chip microcomputer. The stepping motor and electronic control devices are installed in the housing 1, and 13 is the left side cover on the housing.

The working process of this infusion set automatic needle separation machine is as follows:

1. As shown in Figure 8, in the initial state, the infusion bag placement plate 2 is located directly above the housing 1, and the two infusion bag stoppers 25 are aligned with the blade assembly 6 and the blade stopper 4. The operator puts the used infusion bag 8 with an infusion set on the infusion bag placement plate 2, and the infusion bag 8 passes through the rectangular hole 24 in the middle of the bottom plate 21 and rests on the upper surface of the main slide rail 3 and the shells on both sides On the upper wall 12 of the infusion bag, the bottle mouth 81 and the bottleneck 88 of the infusion bag are stuck between the two infusion bag stoppers 25, and the infusion tube 82 and the ventilation pipe 83 of the infusion set are stuck between the blade assembly 6 and the blade stopper 4 , snap the infusion needle 87 into the needle fixing card 41 on the blade block.

2. Press the start button, as shown in Figure 9, the first stepping motor pushes the blade assembly 6 to move to the right, and the blade fixing block 62 and the blade stopper 4 connect the infusion tube 82, the ventilation tube 83 and the infusion needle of the infusion set The connecting pipe 84 of 87 clamps, and blade 61 cuts off these three flexible pipes simultaneously;

3. As shown in Figure 10, the second stepping motor pushes the sliding frame 26 and the infusion bag placement plate 2 to move obliquely to the right and rear along the main slide rail 3, and the infusion bag placement plate 2 and the stopper 25 push the infusion bag 8 Move obliquely to the right rear, so that the liquid introduction needle 85 and the ventilation needle 86 are pulled out from the bottle mouth 81 of the infusion bag.

4. As shown in Figure 11, when the sliding frame 26 and the infusion bag placement plate 2 move to the rightmost position, the rectangular hole 24 on the infusion bag placement plate 2 is completely moved to the outside of the housing 1, and the infusion bag 8 passes through the infusion solution The hole 24 on the bag placement plate 2 falls into the pre-placed infusion bag storage container outside the infusion set automatic needle separator; at the same time, the first stepping motor rotates in the opposite direction, and the blade assembly 6 retreats to the left to meet the blade stopper. 4 break away, and the liquid introduction needle 85, the ventilation needle 86 and the infusion needle 87 fall in the sharps collection box 5.

5. The second stepping motor is also reversed, the infusion bag placement plate 2 returns to the front left, and the blade assembly 6 continues to retreat to the left until it returns to the initial state.

The automatic needle separation machine for infusion sets can also be made into a structure that can process several infusion bags at one time. For example, as shown in Fig. 12, Fig. 13 and Fig. 14, the width of the hole 24 in the middle of the bottom plate of the infusion bag placement plate is increased to slightly greater than three times the width of the infusion bag, and the infusion bag stoppers 25 are changed to six, six Two pairs of infusion bag stoppers are relatively arranged on the rear side of the front edge of the hole 24 in the middle of the bottom plate of the infusion bag placement plate, and two adjacent pairs of infusion bag stoppers 25 are separated by a distance of the width of an infusion bag; The blade assembly 6 and the blade stopper 4 are respectively changed into three, and the blade assembly 6 and the blade stopper 4 are combined in pairs, and are installed on the auxiliary slide rail 7 at intervals between each other. Spaced apart by the width of an infusion bag, a pair of infusion bag stoppers are aligned with a pair of blade assembly-blade stopper combination. This structure can process three infusion bags at one time, and the efficiency is relatively high.

The size of this automatic needle separation machine for infusion sets is about 35cm×30cm×20cm. It is powered by a lithium battery and can be placed on the lower floor of the treatment cart to avoid needle stick injuries that may be caused by nurses manually separating needles. Also can put this infusion set automatic needle separation machine to use in the disposal room.

Claims (2)

1. An automatic needle separation machine for infusion sets, comprising a square housing (1), an infusion bag placement plate (2), a main slide rail (3), a blade assembly (6), a blade stopper (4), a sharps The collection box (5) and the auxiliary slide rail (7), the main slide rail and the auxiliary slide rail are all installed in the housing, and the infusion bag placement plate, the blade assembly and the stopper are located above the housing, and it is characterized in that the main slide rail ( 3) and the auxiliary slide rail (7) are parallel to the bottom surface of the casing (1). The rail (3) is obliquely placed in the housing, the left end (31) of the main slide rail is located at the front of the housing, and the right end (32) of the main slide rail is located at the rear of the housing; the infusion bag placement plate (2) includes a bottom plate (21), left side plate (22), right side plate (23), sliding frame (26) and infusion bag stopper (25), there is a rectangular hole (24) in the middle part of bottom plate (21), the hole of this hole Size is greater than the peripheral dimension of infusion bag, and infusion bag stopper (25) is two, and two infusion bag stoppers (25) are symmetrically positioned at the rear side of the front edge of the rectangular hole (24) of base plate (21), two The distance at the narrowest point between the block infusion bag stoppers (25) is slightly larger than the bottleneck of the infusion bag, and the lower edges of the two side plates (22, 23) are connected to the both sides of the base plate (21) respectively, and the sliding frame ( 26) It is fixed on the outer surface of the left side plate (22), and there is a sliding groove (27) on the lower surface of the sliding frame (26). Consistent, the sliding frame fits on the main slide rail (3) by relying on the sliding groove (27); the lower end of the blade stopper (4) is fixed on the auxiliary slide rail (7), and the left side of the blade stopper (4) There is a needle head fixing card (41) on it, the blade assembly (6) includes a blade (61) and a blade fixing block (62), and there is a chute at the lower end of the blade fixing block (62), and the blade fixing block fits in the On the auxiliary slide rail (7), on the left side of the blade stopper (4), the blade fixing block can slide along the auxiliary sliding rail (7), and the blade (61) is fixed on the front side of the blade fixing block (62), and the blade The cutting edge of the blade is located on the right side of the blade fixing block; the sharps collection box (5) is located in the housing (1), behind the lower side of the auxiliary slide rail (7). 2. The automatic needle separation machine for infusion sets as claimed in claim 1, characterized in that the width of the hole (24) in the middle of the bottom plate of the infusion bag placement plate is slightly greater than three times the width of the infusion bag, and the infusion The bag stopper (25) is changed into six pieces, and the six infusion bag stoppers are arranged oppositely in pairs on the rear side of the front edge of the hole (24) in the middle of the bottom plate of the transfusion bag placement plate, and the adjacent two pairs of infusion bag stoppers (25) are separated by a distance of the width of an infusion bag; the blade assembly (6) and the blade block (4) are respectively changed into three, and the blade assembly (6) and the blade block (4) are combined in pairs, They are installed on the auxiliary slide rail (7) at intervals, and the adjacent blade assembly-blade block combination is spaced apart by the width of an infusion bag.