CN110617461A - Combined shadowless lamp handle cover and preparation method thereof - Google Patents

Abstract

The invention belongs to the technical field of medical supplies, in particular to a handle cover of a combined shadowless lamp. One-time use, convenient assembly and production, reliable quality and strong protection ability. It includes a handle body and an umbrella-shaped sheath, wherein: the handle body is a pipe body whose top seals the bottom opening, and the bottom is integrally shaped and expanded into an arc-shaped structure to form a bell mouth, and the umbrella-shaped sheath is integrally shaped, with an arc The center of the main body of the umbrella cover is hollowed out to set a twist mouth, and the twist mouth is also integrally shaped to set a twist sleeve around it. The twist sleeve is composed of several tongues of the same size that are wound together; The part cover is on the top of the twist mouth, and the outermost edge of the bell mouth is provided with a welding ring, and the welding ring is glued or microwave welded and connected to the twist mouth. The self-adaptive twist sleeve structure allows the doctor to hold it freely during the operation, and can take off his hands for other equipment operations for a while, while still keeping it fit on the spotlight handle, which is convenient for medical operations.

Description

A combined shadowless lamp handle cover and its preparation method

technical field

The invention belongs to the technical field of medical supplies, in particular to a combined shadowless lamp handle cover and a preparation method thereof.

Background technique

During the operation, the doctor should adjust the viewing angle at any time to accurately grasp the situation of the incision and the body cavity. It is necessary to rotate the spotlight handle in the center of the lamp head of the shadowless lamp to focus and adjust the irradiation angle. In the actual application of the operating room, the handle jacket is basically taken for high-pressure disinfection after the operation. There are the following problems in doing so: 1. Repeatedly removing the standard handle cover of the shadowless lamp for disinfection will increase the cumbersome work, and at the same time, the handle cover will be easily aged after repeated disinfection. 2. The upper side of the standard handle cover has a marble buckle. During the loading and unloading process, it is easy to leave the patient's body fluid at the position of the marble, which may cause cross-infection. 3. The bottom button of the handle cover is standard, and the patient's body fluid is easy to remain on the inner side of the button. 4. There is no or small protective area area structure on the upper side of the standard handle cover. When the doctor adjusts the position of the shadowless lamp, it is easy to touch the area near the handle, and there is a risk of cross infection. Therefore, a disposable protective shadowless lamp handle cover should be provided for the above-mentioned components and procedures. Apparatus, effectively solve the above problems.

Contents of the invention

The technical problem to be solved by the present invention is to provide a combined shadowless lamp handle cover, which is disposable, easy to assemble, easy to produce, reliable in quality and strong in protection.

In order to solve the above problems, the present invention adopts the following technical solution: a combined shadowless lamp handle cover, including a handle body and an umbrella sheath, wherein: the handle body is a pipe body with the top sealing the bottom opening, and the bottom is integrally shaped Expanded into an arc-shaped structure to form a bell mouth, the umbrella-shaped sheath is integrally shaped, and the center of the arc-shaped umbrella cover body is hollowed out to set a twist mouth, and the twist mouth is also integrally shaped to set a twist sleeve around it. It is composed of a number of tongues of the same size wound together; the bell mouth of the handle body is covered on the top of the twist mouth, and the outermost edge of the bell mouth is provided with a welding ring, and the welding ring is glued or microwave welded on the twist mouth .

As preferably, the twist mouth is provided with a circle of flat welding seat piece around the inner diameter, the inclination angle of the flat welding seat piece is 0°, and the inclination angle of the matching welding ring is also 0°, and the inner diameter of the flat welding seat piece is wound by Twist sleeve composed of tongue. This setting allows the welding ring and the umbrella sheath to be connected without interfering with the internal twist sleeve, and also specifies the distance for the size of the microwave welding, allowing the naked eye or other machine detection methods to be detected at a glance during production. Know the connection quality.

Preferably, the tongue is trapezoidal or triangular or square, and the angle of inclination is at least 3°. The trapezoidal or triangular or square tongue can expand or reduce the contact inner diameter to a certain extent, that is to say, the spotlight handle equal to the size of the twist sleeve can be inserted into the tube body or bell mouth of the handle body, and the spotlight handle smaller than the size of the twist sleeve The twist sleeve formed by inserting the handle directly into the tongue will reduce the inner diameter, so it will reduce the inner diameter, and because the spotlight handle generally has a twist that increases friction, so after the tongue is inserted, it can increase and adapt to various sizes when it reaches a circle setting. The ability of the spotlight handle.

Preferably, the inner diameter of the flat welding seat piece is also integrally wound and shaped with a positive and negative twisted half-arc piece of 180 degrees, and the twisted half-arc piece is extended inwardly to form a twisted sleeve. Because both the handle body and the umbrella-shaped sheath belong to the soft plastic structure, when twisting, it may cause tearing or tearing of the welded part due to its relatively thin structure when twisting, resulting in detachment from the handle body and the umbrella-shaped sheath, but The twisting half-arc structure can drive the tongue part with the inner diameter set every time it is twisted, instead of randomly driving several tongues. The latter situation will cause the force to be too small and the tongue can not When fully attached to the spotlight handle, the former will only need to hold the main handle body for rotation, and once it turns and twists the half arc, it will completely pull all the tongues set on it.

Preferably the twist sleeve is arranged in the center of the transverse section of the twist opening. This kind of setting can make the front and back sides ignored during assembly and production, and only need to use the top mold to turn inside and outside, reducing the process steps, and it can also increase the fitting ability of the twist mouth, so that its expansion ability is increased.

Preferably, the material of the handle body and the umbrella sheath is medical grade PP/PE material, polylactic acid PLA bio-based material. The medical grade PP/PE material is used, which has low cost and good ductility; the polylactic acid PLA bio-based material is safe, reliable and degradable. Because this product is disposable, it can be more environmentally friendly.

A preparation process for a combined shadowless lamp handle cover, comprising the following steps:

Step 1. Select the combined base material including PE7042 powder material, medical grade PP/PE powder material, and polylactic acid PLA biological base material. pink;

Step 2. The base material plastic powder is placed in a dehumidifier and dried for 4 hours at a drying temperature of 65°C and a dew point of -30°C.

Step 2. Preheat the injection molding equipment. The mold of the combined shadowless lamp handle cover is installed on a 300-ton injection molding machine, and the clamping force is set at 280 tons. The barrel temperature is set at 180~190 degrees Celsius.

Step 3. Add the dried substrate plastic powder, set the injection pressure and holding pressure for injection molding production, the injection pressure is set at 2100~2600kg/cm², and the injection speed is set at 75~100cm3/s. The holding pressure is set at 1400~1700kg/cm², the holding speed is set at 40~55cm3/s, and the handle body (1) and the umbrella sheath (2) of the combined shadowless lamp handle cover are respectively injected.

Step 4. The injection molding of the handle body (1) and the umbrella sheath (2) is completed, and the molded handle body (1) and the umbrella sheath (2) are cooled in the mold for 8 seconds, and then the injection molding machine will be ejected , two stages of ejection, the pressure is set at 500~700kg/cm², and the speed is set at 40~50cm3/s.

Step 5. The semi-finished product is completed and welded. Put the two parts of the handle body (1) and the umbrella sheath (2) into the ultrasonic welding mold to perform the welding process. The welding parameters are: air pressure 8 kg, welding time 3 seconds, holding time 6 seconds. Frequency 2500 Hz.

Step 6. Assemble the finished product packaging, put the product into a sterile bag, and then pack it into a carton.

Step 7, finished product disinfection.

The preferred model of the PLA bio-based material is 2003D.

Preferably, the medical grade PP/PE powder is PP/PE and EVA copolymer powder or Basel medical grade PP, PE and EVA copolymer series PP/PE powder.

The beneficial effects of the present invention are: adopting a disposable and convenient sexual protection device, which is more safe and reliable, avoids the risk of cross-infection to the greatest extent without repeated use, avoids the tedious work of repeated disinfection by doctors, is convenient to install and disassemble, and improves the health of doctors. surgical efficiency;

The self-adaptive twist sleeve structure allows the doctor to hold it freely during the operation, and can take off his hands for other equipment operations for a while, while still keeping it on the spotlight handle, which is convenient for medical operations;

After the degradable material is optimized to the greatest extent, even if the material is relatively thin and fragile, the structure of the joint part is firm and the thickness is appropriate, and it is strong and tear-resistant;

The upper and lower parts are divided into two parts, instead of the integrated structure of the prior art, that is to say, the two structures can be combined by modularization, so that the handle body can be combined in thickness when the size of the umbrella-shaped sheath remains unchanged as much as possible to adapt Various shadowless lamps;

Using and adopting injection molding and welding process to produce, the product quality is reliable and stable, the cost is low, and the production speed is fast.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Figure 1 is a schematic diagram of the overall front;

Figure 2 is an exploded view of the main components;

Figure 3 is an exploded perspective view of the main components;

Fig. 4 is an overall sectional view;

Figure 5 is a structural diagram of the umbrella sheath.

Figure 6 is a top view of the umbrella sheath.

Fig. 7 is an overall bottom view of the embodiment.

Figure 8 is a top view of the embodiment.

In the figure: handle body (1), umbrella sheath (2), bell mouth (3), twist mouth (4), twist sleeve (5), tongue piece (6), welding ring (7), flat welding seat sheet (8), twist half-arc sheet (9).

Detailed ways

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

The main embodiment, as shown in Figure 1, is a combined shadowless lamp handle cover, including a handle body (1) and an umbrella sheath (2);

The production steps of the two are: Step 1. Select the combined base material including PE7042 powder material, medical grade PP/PE powder material, and polylactic acid PLA biological base material. Add additives according to actual needs, and put them into a mixer to mix evenly And broken into base plastic powder;

Step 2. The base material plastic powder is placed in a dehumidifier and dried for 4 hours at a drying temperature of 65°C and a dew point of -30°C.

Step 2. Preheat the injection molding equipment. The mold of the combined shadowless lamp handle cover is installed on a 300-ton injection molding machine, and the clamping force is set at 280 tons. The barrel temperature is set at 180~190 degrees Celsius.

Step 3. Add the dried substrate plastic powder, set the injection pressure and holding pressure for injection molding production, the injection pressure is set at 2100~2600kg/cm², and the injection speed is set at 75~100cm3/s. The holding pressure is set at 1400~1700kg/cm², the holding speed is set at 40~55cm3/s, and the handle body (1) and the umbrella sheath (2) of the combined shadowless lamp handle cover are respectively injected.

Step 4. The injection molding of the handle body (1) and the umbrella sheath (2) is completed, and the molded handle body (1) and the umbrella sheath (2) are cooled in the mold for 8 seconds, and then the injection molding machine will be ejected , two stages of ejection, the pressure is set at 500~700kg/cm², and the speed is set at 40~50cm3/s.

Step 5. The semi-finished product is completed and welded, and the handle body (1) and the umbrella sheath (2) obtained from the accommodation are put into the ultrasonic welding mold to perform the welding process. The welding parameters are: air pressure 8 kg, welding time 3 seconds, holding time 6 seconds. Frequency 2500 Hz.

The obtained structure is shown in Figures 3 and 4, the handle body (1) is a pipe body with the top sealed and the bottom opening, and the bottom is integrally shaped and expanded into an arc-shaped structure to form a bell mouth (3), and the umbrella-shaped sheath (2) Integral shaping, the center of the arc-shaped umbrella cover body is hollowed out to set a twist mouth (4), and the twist mouth (4) is also integrally shaped to set a twist sleeve (5) around it, and the twist sleeve (5) It consists of a number of tongues (6) of the same size wound together; the bell mouth (3) of the handle body (1) is covered on the top of the twist mouth (4), and the outermost edge of the bell mouth (3) is set There is a welding ring (7), and the welding ring (7) is glued or microwave welded and connected to the twisted mouth (4). In this way, a cover body structure with a handle is formed, and the combined finished product is then packaged, the product is packed in a sterile bag, and then packed into a carton. Step 7. After the finished product is sterilized, it can be sold as a secondary product.

When using the finished product, hold the handle body (1) put the suction button on the top or bottom flat surface of the surgical shadowless lamp, squeeze the air to completely suck the button, or use the standard method of use to align the fit of the surgical shadowless lamp For the lamp handle, cover the bell mouth (3) on the sleeve lamp handle, insert the sleeve lamp handle into the tube cavity of the handle body (1), twist it properly and feel the sliding range with your hand to prevent the sleeve Closing the lamp handle and the whole combination of the present invention is incomplete, and then the mobile operation shadowless lamp can be carried out.

Preferably, the twist mouth (4) is provided with a circle of flat welding seat piece (8) around the inner diameter, the inclination angle of the flat welding seat piece (8) is 0°, and the inclination angle of the matching welding ring (7) is also 0° , the inner diameter of the flat welding seat piece (8) is wound with a twist sleeve (5) composed of tongue pieces (6). This setting allows the welding ring (7) and the umbrella sheath (2) to be connected without interfering with the inner twist sleeve (5), and also specifies the distance for the size of the microwave welding, allowing the naked eye or other The machine detection method can know the connection quality at a glance during production.

Preferably, the tongue (6) is trapezoidal or triangular or square, and the inclination angle is set at least 3°. The trapezoidal or triangular or square tongue can expand or reduce the contact inner diameter to a certain extent, that is to say, the spotlight handle equal to the size of the twist sleeve can be inserted into the tube body or bell mouth of the handle body, and the spotlight handle smaller than the size of the twist sleeve The twist sleeve formed by inserting the handle directly into the tongue will reduce the inner diameter, so it will reduce the inner diameter, and because the spotlight handle generally has a twist that increases friction, so after the tongue is inserted, it can increase and adapt to various sizes when it reaches a circle setting. The ability of the spotlight handle.

Preferably, the inner diameter of the flat welding seat piece (8) is also integrally wound and shaped, with a twisted half-arc piece (9) of 180 degrees each, and the twisted half-arc piece (9) is extended and shaped inwardly. Wear the twist sleeve (5). Because both the handle body and the umbrella-shaped sheath belong to the soft plastic structure, when twisting, it may cause tearing or tearing of the welded part due to its relatively thin structure when twisting, resulting in detachment from the handle body and the umbrella-shaped sheath, but The twisting half-arc structure can drive the tongue part with the inner diameter set every time it is twisted, instead of randomly driving several tongues. The latter situation will cause the force to be too small and the tongue can not When fully attached to the spotlight handle, the former will only need to hold the main handle body for rotation, and once it turns and twists the half arc, it will completely pull all the tongues set on it.

Preferably the twist sleeve is arranged in the center of the transverse section of the twist opening. This kind of setting can make the front and back sides ignored during assembly and production, and only need to use the top mold to turn inside and outside, reducing the process steps, and it can also increase the fitting ability of the twist mouth, so that its expansion ability is increased.

Preferably, the material of the handle body (1) and the umbrella sheath (2) is medical grade PP/PE material, polylactic acid PLA bio-based material. (1) Medical grade PP/PE material is used, which has low cost and good ductility; polylactic acid PLA bio-based material is safe, reliable and degradable. Because this product is disposable, it can be more friendly to the environment.

The preferred model of the PLA bio-based material is 2003D.

Preferably, the medical grade PP/PE powder is PP/PE and EVA copolymer powder or Basel medical grade PP, PE and EVA copolymer series PP/PE powder.

The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or replacements that do not come to mind through creative work shall be covered by the protection scope of the present invention.

Claims (8)

1. A combined shadowless lamp handle cover, including a handle body and an umbrella-shaped sheath, characterized in that: the handle body is a tube body whose top seals the bottom opening, and the bottom is integrally shaped and expanded into an arc-shaped structure to form a bell mouth , the umbrella-shaped sheath is integrally shaped, the center of the arc-shaped umbrella cover is hollowed out to set a twist mouth, and the twist mouth is also integrally shaped to set a twist sleeve around it, and the twist sleeve is wound by several tongues of the same size. It is composed of a circle; the bell mouth of the handle body is covered on the top of the twist mouth, and the outermost edge of the bell mouth is provided with a welding ring, and the welding ring is glued or microwave welded on the twist mouth. 2. A combined shadowless lamp handle cover according to claim 1, characterized in that: the twisted mouth is provided with a circle of flat welding seat pieces around the inner diameter, and the inclination angle of the flat welding seat pieces is 0°, as a matching welding ring The angle of inclination is also 0°, and the inner diameter of the flat welding seat piece is wound with a twist sleeve composed of tongue pieces. 3. A combined shadowless lamp handle cover according to claim 1, characterized in that: the tongue is trapezoidal or triangular or square, and the inclination angle is set at least 3°. 4. A combined shadowless lamp handle cover according to claim 1 or 2, characterized in that: the inner diameter of the flat welding seat piece is integrally wound and shaped, and there is a twisted half-arc piece with a front and a back of 180 degrees each , the twisted half-arc extends inwards to form a twisted sleeve. 5. A combined shadowless lamp handle cover according to claim 1 or 2, characterized in that: the twist sleeve is arranged in the center of the transverse section of the twist opening. 6. A preparation process for the combined shadowless lamp handle cover according to claim 1, characterized in that: comprising the following steps: Step 1. Select the combined base material including PE7042 powder material, medical grade PP/PE powder material, and polylactic acid PLA biological base material. pink; Step 2. Put the base plastic powder in a dehumidifier and dry it for 4 hours at a drying temperature of 65°C and a dew point of -30°C; Step 2. Preheat the injection molding equipment. The mold of the handle cover of the combined shadowless lamp is installed on a 300-ton injection molding machine, and the clamping force is set at 280 tons; The barrel temperature is set at 180~190 degrees Celsius; Step 3. Add the dried substrate plastic powder, set the injection pressure and holding pressure for injection molding production, the injection pressure is set at 2100~2600kg/cm², and the injection speed is set at 75~100cm3/s; The holding pressure is set at 1400~1700kg/cm², the holding speed is set at 40~55cm3/s, and the handle body (1) and the umbrella sheath (2) of the combined shadowless lamp handle cover are respectively injected; Step 4. The injection molding of the handle body (1) and the umbrella sheath (2) is completed, and the molded handle body (1) and the umbrella sheath (2) are cooled in the mold for 8 seconds, and then the injection molding machine will be ejected , two stages of ejection, the pressure is set at 500~700kg/cm², and the speed is set at 40~50cm3/s; Step 5. The semi-finished product is completed and welded, and the two parts of the handle body (1) and the umbrella sheath (2) are put into the ultrasonic welding mold to perform the welding process; The welding parameters are: air pressure 8 kg, welding time 3 seconds, holding time 6 seconds; Frequency 2500 Hz; Step 6. Assemble the finished product packaging, put the product into a sterile bag, and then pack it into a carton; Step 7, finished product disinfection. 7. The manufacturing process of a combined shadowless lamp handle cover according to claim 6, characterized in that: the model of the polylactic acid PLA bio-based material is 2003D. 8. The preparation process of a combined shadowless lamp handle cover according to claim 6, characterized in that: the medical grade PP/PE powder is PP/PE and EVA copolymer powder or Basel medical grade PP, PE and EVA copolymer series PP/PE powder.