CN219661910U - Sharp instrument accommodating box with sharp instrument separating function - Google Patents

Abstract

The utility model discloses a sharp instrument accommodating box with a sharp instrument separating function, which relates to the technical field of container separating assemblies.

Description

Sharp instrument accommodating box with sharp instrument separating function

Technical Field

The utility model belongs to the technical field of container separation assemblies, and particularly relates to a sharp container with a sharp separating function.

Background

The sharp instrument box can collect the needle heads of syringes, infusion sets and disposable articles, collect sharp instruments such as medical small glass products, various blades, scalp needles, suture needles and the like, and collect the medical devices such as whole syringes with blood, blood transfusion sets and the like which contact the blood.

The sharp instrument box is made of new polypropylene material, does not contain PVC, is convenient, safe, nontoxic, puncture-resistant, leakage-free, easy to burn at high temperature, and cannot be opened under the condition of no damage after being closed.

However, the existing sharps container has the following defects: when the syringe needle of transfer line and syringe need be placed, usually need medical personnel manual cut the transfer line or take off syringe needle, place the syringe needle in sharp ware box again, the syringe needle is easy to puncture medical personnel's hand when the operation, endangers medical personnel's personal safety, simultaneously, in order to prevent to fall into the cracked splashing of glass article inside sharp ware box, usually with the less of the input mouth setting of sharp ware box, but less input mouth needs medical personnel to accurately throw into when placing article, and the operation is comparatively inconvenient.

Disclosure of Invention

The present utility model has been made in view of the above-mentioned problems occurring in the prior art, and an object of the present utility model is to provide a sharps container having a sharps separating function.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the present utility model is a sharps container having a sharps separating function, comprising: the upper end and one side of the shell are provided with openings, the front side of the shell is provided with a placing opening, and the front side of the shell is hinged with a sealing door for closing the placing opening;

the lower end of the guide hopper is fixed with the upper end of the shell and communicated with the opening at the upper end of the shell, and a splash-proof layer is fixedly embedded in the inner wall of the guide hopper;

the lower end of the separation clamping plate is fixed with the upper end of the shell, and the other end of the separation clamping plate is positioned above the guide hopper;

the cutting assembly comprises a driving cylinder, a cutting knife and a cutting plate group, the upper end of the driving cylinder is fixed with the inner top wall of the shell, a piston rod of the driving cylinder extends downwards and is fixed with the upper end of the cutting knife, the cutting knife is positioned at the upper end of the cutting plate group, the cutting plate group is positioned below an opening on one side of the shell, and the cutting plate group is fixedly arranged on the inner side wall of the shell;

the sharp machine box is slidably mounted in the shell through the sliding mechanism, the guide hopper and the cutting plate group are positioned above the opening of the sharp machine box, and the sharp machine box is matched with the placement opening on the front side of the shell;

the inductor is fixed with the inner top wall of the shell and is positioned at one side of the cutting plate group far away from the opening of the side wall of the shell;

and the external controller is electrically connected with the sensor and the driving cylinder.

Further, the cutting plate group includes:

the fixed block is fixed on one side of the fixed block and the inner side wall of the shell, and the fixed block is positioned below the opening of the side wall of the shell;

a reset elastic piece, wherein one end of the reset elastic piece is fixed with the fixed block;

the movable cutting plate is hinged with the fixed block through a reset elastic piece and rotates downwards.

Further, the elastic reset piece comprises a spring piece, the cross section of the spring piece is omega-shaped, an arc hole is formed in the fixed block, one end of the spring piece penetrates through the arc hole in the fixed block and is fixed with the bottom surface of the fixed block, and the other end of the spring piece is fixed with the bottom surface of the movable cutting plate.

Further, the shell inside wall is fixed with the baffle, and the baffle is located cutting board group below, and the baffle slope sets up, and the baffle is installed to the baffle top, and the baffle passes through the spliced pole to be fixed with the shell inner wall, and the baffle is located cutting board group top and is located the inductor and keep away from shell side wall open-ended one side.

Further, the separation cardboard is reverse L shape, and the triangle bayonet socket has been seted up to separation cardboard horizontal plate one end, and the opening width that the triangle bayonet socket is close to separation cardboard horizontal plate tip is greater than the opening width that the triangle bayonet socket kept away from separation cardboard horizontal plate tip, still is provided with the circular breach with the syringe adaptation in the triangle bayonet socket, and the arc recess with the triangle bayonet socket intercommunication has been seted up to separation cardboard upper surface.

Further, the slide mechanism includes:

the sliding rails are provided with two sliding rails and are symmetrically fixed on the inner walls of the two sides of the shell;

the two sliding rods are respectively connected with the two sliding rails in a sliding way, and one ends of the two sliding rods, which are far away from the sliding rails, are fixed with the side wall of the sharp instrument box;

both sides all are fixed with the support handle around the sharp machine box, and two support handles support tightly with sealing door inner wall and shell inside wall respectively.

Further, the method further comprises the following steps:

the distance measuring sensor is fixed with the inner top wall of the shell and is positioned above the sharp instrument box;

the alarm is arranged outside the shell;

the distance measuring sensor and the alarm are electrically connected with an external controller.

Further, a hole cover is fixed at the opening of the side wall of the shell.

Further, the bottom wall in the shell is embedded with balls in a rolling way, and the balls are in rolling contact with the bottom surface of the sharpening box.

The utility model has the following beneficial effects:

1. according to the utility model, through the arrangement of the separation clamping plate, the cutting assembly and the sensor, medical staff uses the separation clamping plate to take down the syringe needle, so that the syringe needle falls into the guide hopper and falls into the sharps box along the guide hopper, when the infusion tube needle needs to be separated, the medical staff only needs to stretch one end of the infusion tube needle into the shell from the opening of the side wall of the shell, so that the infusion tube and the needle are positioned between the cutting knife and the cutting plate group, when one end of the infusion tube needle is positioned below the sensor, the sensor sends a signal to the external controller, the external controller controls the starting of the driving cylinder, the driving cylinder drives the cutting knife to descend and match with the cutting plate group to complete the cutting work of the infusion tube, and the cut infusion tube needle falls into the sharps box, so that the separation collection work of the infusion tube needle is completed, the whole separation process avoids the hand of the medical staff from contacting the needle, thus avoiding the hand situation of the medical staff from being punctured by the needle, and simultaneously facilitating the medical staff to put articles into the sharps box.

2. According to the utility model, through the arrangement of the guide plate and the blocking plate, the guide plate can further play a role in guiding the cut infusion tube needle head, when the infusion tube needle head does not leave the movable cutting plate, the infusion tube needle head is thrown out when the movable cutting plate is sprung, and the blocking plate intercepts the thrown infusion tube needle head at the moment, so that the infusion tube needle head drops into the sharp box downwards, and the blocking plate plays a good role in guiding the infusion tube needle head when being matched with the guide plate, so that the infusion tube needle head is prevented from falling or falling out of the collection range of the sharp box.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view showing the overall structure of a sharps container having a sharps separating function;

fig. 2 is a sectional view of a sharps container having a sharps separating function;

FIG. 3 is an exploded view of a cutting plate assembly of a sharps container having a sharps separating function;

FIG. 4 is a schematic view of a separating card of a sharps container having a sharps separating function;

in the drawings, the list of components represented by the various numbers is as follows:

1. a housing; 11. sealing the door; 12. a slide rail; 13. a guide plate; 14. a blocking plate; 2. a guide hopper; 21. a splash-proof layer; 3. separating the clamping plates; 31. triangular bayonet; 32. an arc-shaped groove; 4. a cutting assembly; 41. a driving cylinder; 42. a cutting knife; 43. cutting the plate group; 431. a fixed block; 432. a spring piece; 433. a movable cutting plate; 5. a sharps container; 51. a slide bar; 52. a support handle; 6. a hole cover; 7. a ball; 8. an inductor; 9. a distance measuring sensor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, the utility model relates to a sharps accommodating box with sharps separating function, which comprises a shell 1, wherein openings are formed at the upper end and one side of the shell 1, a placing opening is formed at the front side of the shell 1, a sealing door 11 for closing the placing opening is hinged at the front side of the shell 1, a guide hopper 2 communicated with the opening at the upper end of the shell 1 is fixed at the upper end of the shell 1, a splash-proof layer 21 is fixedly embedded in the inner wall of the guide hopper 2, the splash-proof layer 21 is made of elastic cloth and fluff fabric in a compounding manner, the sharps accommodating box has good deformability, and has weaker resilience, the guide hopper 2 enlarges the placing area, and is convenient for workers to place sharps such as needles, glassware and the like (e.g. ampoule bottles);

the upper end of the shell 1 is fixedly provided with a separation clamping plate 3, the other end of the separation clamping plate 3 far away from the shell 1 is positioned above the guide hopper 2, and the separation clamping plate 3 is used for taking down the syringe needle;

the cutting assembly 4 is arranged in the shell 1, the cutting assembly 4 comprises a driving cylinder 41, a cutting knife 42 and a cutting plate group 43, the upper end of the driving cylinder 41 is fixed with the inner top wall of the shell 1, a piston rod of the driving cylinder 41 extends downwards and is fixed with the upper end of the cutting knife 42, the cutting knife 42 is positioned at the upper end of the cutting plate group 43, the cutting plate group 43 is positioned below an opening on one side of the shell 1, the cutting plate group 43 is fixedly arranged on the inner side wall of the shell 1, a sliding mechanism is arranged in the shell 1, the shell 1 is connected with a sharps box 5 in a sliding manner through the sliding mechanism, the guide hopper 2 and the cutting plate group 43 are both positioned above the opening of the sharps box 5, the sharps box 5 is matched with a placement opening on the front side of the shell 1, and the sharps box 5 is used for accommodating sharps;

the inner top wall of the shell 1 is fixed with an inductor 8, the inductor 8 is located at one side of the cutting board group 43 far away from the side wall opening of the shell 1, the inductor 8 adopts a trigger type sensor which is commonly used in the prior art and is applicable to the embodiment, an external controller (not shown in the figure) is arranged outside the shell 1, the external controller is electrically connected with the inductor 8 and the driving cylinder 41, the external controller adopts a programmable controller which is existing in the prior art, and the external controller is used for receiving signals of the inductor 8 and controlling the opening, closing and lifting operations of the driving cylinder 41.

Through setting up of separation cardboard 3, cutting assembly 4 and inductor 8, medical personnel use separation cardboard 3 to take off the syringe needle, make the syringe needle fall into guide hopper 2 and fall into sharp ware box 5 along guide hopper 2, when needs separation transfer line syringe needle, medical personnel only need stretch into shell 1 with transfer line syringe needle one end by shell 1 lateral wall opening part, make transfer line and syringe needle be located between cutting knife 42 and the cutting board group 43, trigger inductor 8 when transfer line syringe needle one end is located inductor 8 below, inductor 8 sends the signal to external control ware, external control ware control drive cylinder 41 starts, drive cylinder 41 drives cutting knife 42 decline and cooperates with cutting board group 43 and accomplish the work of cutting off the transfer line, transfer line syringe needle after the cutting drops into sharp ware box 5, thereby accomplish the separation collection operation to transfer line syringe needle, whole separation process has avoided medical personnel's hand and needle contact, thereby avoid the situation emergence of medical personnel's hand, simultaneously, be convenient for medical personnel put in article to sharp ware box 5.

As shown in fig. 2-3, the cutting board set 43 includes a fixed block 431, a reset elastic member and a movable cutting board 433, one side of the fixed block 431 is fixed with the inner side wall of the housing 1, the fixed block 431 is located below the opening of the side wall of the housing 1, the movable cutting board 433 is hinged with the fixed block 431 through the reset elastic member, the movable cutting board 433 rotates downwards, when the cutting knife 42 descends under the driving of the driving cylinder 41, the cutting knife 42 pushes down the movable cutting board 433 with the infusion tube tightly, so that the movable cutting board 433 presents an inclined surface, and when pushed down to a certain position, the movable cutting board 433 pushes up with the fixed block 431, at this time, the cutting knife 42 cuts off the infusion tube and enables the infusion tube needle to slide into the sharps box 5 along the movable cutting board 433, so as to avoid the infusion tube needle to stay on the movable cutting board 433;

the reset elastic piece comprises a spring piece 432, the section of the spring piece 432 is omega-shaped, an arc hole is formed in the fixed block 431, one end of the spring piece 432 penetrates through the arc hole in the fixed block 431 and is fixed with the bottom surface of the fixed block 431, the other end of the spring piece 432 is fixed with the bottom surface of the movable cutting plate 433, and the spring piece 432 drives the movable cutting plate 433 to reset after the infusion tube is cut off, so that the next cutting operation can be performed.

As shown in fig. 2, the inner side wall of the housing 1 is fixed with a guide plate 13, the guide plate 13 is located below the cutting plate set 43, the guide plate 13 is obliquely arranged, a blocking plate 14 is installed above the guide plate 13, the blocking plate 14 is fixed with the inner wall of the housing 1 through a connecting column, the blocking plate 14 is located above the cutting plate set 43 and is located at one side of the sensor 8 far away from the opening of the side wall of the housing 1, the guide plate 13 can further guide the cut infusion tube needle, when the infusion tube needle does not leave the movable cutting plate 433, the movable cutting plate 433 ejects the infusion tube needle, and at the moment, the blocking plate 14 intercepts the ejected infusion tube needle, so that the infusion tube needle drops into the sharps box 5 downwards, the blocking plate 14 cooperates with the guide plate 13 to play a good guide effect on the infusion tube needle, and the infusion tube needle is prevented from falling or falling out of the collection range of the sharps box 5.

As shown in fig. 4, the separation clamping plate 3 is in an inverted L shape, one end of the horizontal plate of the separation clamping plate 3 is provided with a triangular bayonet 31, the opening width of the triangular bayonet 31 near the end of the horizontal plate of the separation clamping plate 3 is larger than the opening width of the triangular bayonet 31 far away from the end of the horizontal plate of the separation clamping plate 3, a circular notch matched with the syringe is further arranged in the triangular bayonet 31, the upper surface of the separation clamping plate 3 is provided with an arc-shaped groove 32 communicated with the triangular bayonet 31, when the syringe needle needs to be taken down, a worker only needs to clamp the lower end of the syringe in the triangular bayonet 31, the syringe needle is positioned below the triangular bayonet 31, then the syringe is pulled out upwards, the syringe needle can fall into the guide hopper 2, the separation of the syringe needle is completed, and meanwhile, the arc-shaped groove 32 collects the residual liquid dropped in the syringe and leads to the position of the triangular bayonet 31, so that the residual liquid at the joint of the syringe and the syringe needle is prevented from scattering and polluting.

As shown in fig. 2, the sliding mechanism includes two sliding rails 12 and two sliding rods 51, the sliding rails 12 are provided with two sliding rods and symmetrically fixed on inner walls of two sides of the housing 1, the sliding rods 51 are provided with two sliding rods and are respectively connected with the two sliding rails 12 in a sliding manner, one ends of the two sliding rods 51 far away from the sliding rails 12 are fixed with side walls of the sharps box 5, supporting handles 52 are respectively fixed on front and rear sides of the sharps box 5, the two supporting handles 52 are respectively abutted against inner walls of the sealing door 11 and inner walls of the housing 1, medical staff can drive the sharps box 5 to slide along the sliding rails 12 only by pushing and pulling the supporting handles 52, and the sharps box 5 is taken out or installed in the housing 1, so that installation or taking-out operation of the sharps box 5 is completed, and the installed sharps box 5 is supported and positioned by the two sliding rods 51 and the two supporting handles 52 together, so that displacement of the sharps box 5 in the housing 1 is avoided.

Wherein as shown in fig. 2, a sharp instrument accommodation box with sharp instrument separation function still includes range finding sensor 9 and alarm, range finding sensor 9 is fixed with the roof in the shell 1, range finding sensor 9 is located sharp instrument box 5 top, the alarm is installed in shell 1 outside, range finding sensor 9 and alarm all with external control ware electric connection, measure the distance between the roof in sharp instrument box 5 and the shell 1 through range finding sensor 9, and send out the alarm through the alarm when reaching predetermined distance (the article height reaches three quarters of sharp instrument box 5 in sharp instrument box 5) in order to carry medical personnel in time to change sharp instrument box 5.

As shown in fig. 1, a hole cover 6 is fixed at the opening of the side wall of the casing 1, the hole cover 6 is a rubber hole cover commonly used in the prior art and suitable for the embodiment, and a rubber soft curtain is arranged at the middle part of the hole cover, so that the opening of the side wall of the casing 1 can be shielded and sealed, and the inside of the casing 1 is separated from the external environment.

Wherein as shown in fig. 2, the inner bottom wall of the shell 1 is embedded with the balls 7 in a rolling way, the balls 7 are in rolling contact with the bottom surface of the sharps box 5, and the friction force between the sharps box 5 and the shell 1 is reduced due to the arrangement of the balls 7, so that medical staff can push and pull the sharps box 5 more conveniently and more easily.

One specific application of this embodiment is: in daily use, medical personnel need open sealing door 11 at first, promote and support handle 52 can order about sharp ware box 5 and slide along slide rail 12, put into shell 1 with sharp ware box 5, thereby accomplish the installation or take out the operation of sharp ware box 5, medical personnel is through in the triangle bayonet socket 31 with syringe cylinder front end card income separation cardboard 3, and pull up the syringe cylinder, make syringe needle separate with the syringe cylinder under the effect of separation cardboard 3, the syringe needle falls into guide hopper 2 and falls into sharp ware box 5 along guide hopper 2, when needing to separate the infusion tube syringe needle, medical personnel only need with infusion tube syringe needle one end stretch into shell 1 by shell 1 lateral wall opening department, make infusion tube and syringe needle be located between cutter 42 and the cutting board group 43, when infusion tube syringe needle one end is located the inductor 8 below, inductor 8 sends the signal to external control ware, external control ware control drives actuating cylinder 41 and drives cutter 42 decline and accomplish the work of cutting off the infusion tube with the cooperation of cutting board group 43, the infusion tube syringe needle is dropped into the cutting tube syringe needle 5, thereby the medical personnel has avoided sharp ware needle that the hand protector is broken down, the medical personnel has avoided sharp ware to take place in the medical personnel's the medical personnel to take place in the medical personnel's the needle, the hand protector is convenient for the condition to separate the infusion tube needle, hand needle is broken to the needle in the medical personnel has avoided the needle to take place in the medical personnel.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (9)

1. A sharps container having a sharps separating function, comprising:

the device comprises a shell (1), wherein openings are formed in the upper end and one side of the shell (1), a placing opening is formed in the front side of the shell (1), and a sealing door (11) for closing the placing opening is hinged to the front side of the shell (1);

the lower end of the guide hopper (2) is fixed with the upper end of the shell (1) and is communicated with the upper end opening of the shell (1), and a splash-proof layer (21) is fixedly embedded in the inner wall of the guide hopper (2);

the lower end of the separation clamping plate (3) is fixed with the upper end of the shell (1), and the other end of the separation clamping plate (3) is positioned above the guide hopper (2);

the cutting assembly (4), the cutting assembly (4) comprises a driving cylinder (41), a cutting knife (42) and a cutting plate group (43), wherein the upper end of the driving cylinder (41) is fixed with the inner top wall of the shell (1), a piston rod of the driving cylinder (41) extends downwards and is fixed with the upper end of the cutting knife (42), the cutting knife (42) is positioned at the upper end of the cutting plate group (43), the cutting plate group (43) is positioned below an opening at one side of the shell (1), and the cutting plate group (43) is fixedly arranged on the inner side wall of the shell (1);

the sharp machine box (5), the sharp machine box (5) is installed in the shell (1) in a sliding mode through the sliding mechanism, the guide hopper (2) and the cutting board group (43) are located above the opening of the sharp machine box (5), and the sharp machine box (5) is matched with the placement opening on the front side of the shell (1);

the inductor (8) is fixed with the inner top wall of the shell (1), and the inductor (8) is positioned at one side of the cutting board group (43) far away from the side wall opening of the shell (1);

and the external controller is electrically connected with the sensor (8) and the driving cylinder (41).

2. A sharps container having a sharps separating function according to claim 1, wherein said cutting panel set (43) comprises:

the fixing block (431), one side of the fixing block (431) is fixed with the inner side wall of the shell (1), and the fixing block (431) is positioned below the side wall opening of the shell (1);

one end of the reset elastic piece is fixed with the fixed block (431);

the movable cutting plate (433), the movable cutting plate (433) is articulated with the fixed block (431) through the elastic component that resets, the movable cutting plate (433) rotates downwards.

3. The sharps container with sharps separating function according to claim 2, wherein the restoring elastic member comprises a spring piece (432), the cross section of the spring piece (432) is omega-shaped, the fixing block (431) is provided with an arc hole, one end of the spring piece (432) passes through the arc hole of the fixing block (431) and is fixed with the bottom surface of the fixing block (431), and the other end of the spring piece (432) is fixed with the bottom surface of the movable cutting plate (433).

4. The sharp-pointed holding box with the sharp-pointed separating function according to claim 1, wherein a guide plate (13) is fixed on the inner side wall of the housing (1), the guide plate (13) is positioned below the cutting plate group (43), the guide plate (13) is obliquely arranged, a blocking plate (14) is installed above the guide plate (13), the blocking plate (14) is fixed with the inner wall of the housing (1) through a connecting column, and the blocking plate (14) is positioned above the cutting plate group (43) and on one side of the inductor (8) far away from the side wall opening of the housing (1).

5. The sharp instrument accommodating box with the sharp instrument separating function according to claim 1, wherein the separating clamping plate (3) is in an inverted L shape, a triangular bayonet (31) is formed at one end of a horizontal plate of the separating clamping plate (3), the opening width of the end part of the triangular bayonet (31) close to the horizontal plate of the separating clamping plate (3) is larger than that of the end part of the triangular bayonet (31) far away from the horizontal plate of the separating clamping plate (3), a circular notch matched with the injector is further formed in the triangular bayonet (31), and an arc-shaped groove (32) communicated with the triangular bayonet (31) is formed in the upper surface of the separating clamping plate (3).

6. The sharps container having a sharps separating function according to claim 1, wherein said sliding mechanism comprises:

the sliding rails (12) are arranged, and the sliding rails (12) are symmetrically fixed on the inner walls of the two sides of the shell (1);

the two sliding rods (51) are arranged and are respectively connected with the two sliding rails (12) in a sliding manner, and one ends of the two sliding rods (51) far away from the sliding rails (12) are fixed with the side wall of the sharp instrument box (5);

the front side and the rear side of the sharp instrument box (5) are respectively fixed with a supporting handle (52), and the two supporting handles (52) are respectively abutted against the inner wall of the sealing door (11) and the inner side wall of the shell (1).

7. The sharps container having a sharps separating function according to claim 1, further comprising:

the distance measuring sensor (9) is fixed with the inner top wall of the shell (1), and the distance measuring sensor (9) is positioned above the sharp instrument box (5);

the alarm is arranged outside the shell (1);

the distance measuring sensor (9) and the alarm are electrically connected with an external controller.

8. The sharps container with sharps separating function according to claim 1, wherein a hole cover (6) is fixed at the opening of the side wall of the casing (1).

9. The sharps container with sharps separating function according to claim 1, wherein the inner bottom wall of the housing (1) is embedded with balls (7) in rolling contact with the bottom surface of the sharps container (5).