WO2023065975A1

WO2023065975A1 - Improved-safety non-woven fabric surgical dressing and non-woven fabric surgical dressing pack

Info

Publication number: WO2023065975A1
Application number: PCT/CN2022/121169
Authority: WO
Inventors: 陈仲璜
Original assignee: 高先医疗科技(惠州)有限公司
Priority date: 2021-10-18
Filing date: 2022-09-26
Publication date: 2023-04-27

Abstract

An improved-safety non-woven fabric surgical dressing comprises a water absorption pad (10) and at least one visual tracking strip (12). The water absorption pad (10) is made of a spunlace or needle-punched water-absorbent non-woven fabric. At least one visual tracking strip (12) is arranged on the water absorption pad (10), and the visual tracking strip (12) is made of a hydrophobic cloth and has at least one color which is obviously different from the color of blood, and is used for improving the visual tracking performance of the blood-soaked non-woven fabric surgical dressing during or after surgery, thus further improving the visibility of the surgical dressing and increasing the safety of the surgical dressing during use in surgery. A non-woven fabric surgical dressing pack comprises a packaging piece; and a plurality of sheets of non-woven fabric surgical dressing, wherein the plurality of sheets of non-woven fabric surgical dressing are stacked and hermetically packaged in the packaging piece, and, following sterilization, are used for surgery.

Description

Nonwoven Surgical Dressing and Nonwoven Surgical Dressing Pack for Enhanced Safety

technical field

The invention relates to a medical dressing, in particular to a safety-enhanced non-woven surgical dressing and a non-woven surgical dressing bag.

Background technique

Surgical dressings typically include absorbent pads, x-ray tracking elements, and secure retrieval handles for larger incision procedures. In surgery, surgical dressings are primarily used to absorb blood and fluid exudates from the surgical site. X-ray tracking elements are usually made of PVC rubber thread containing at least 50% barium sulfate (by weight), which makes the X-rays radiopaque and visible under the X-ray machine, so if the surgical dressing is left in the patient, it can Find it with X-rays. The Safe Retrieval Handle is used to pull surgical dressings out of the patient postoperatively, it is used when counting dressings after surgery, and it can also be used to hold blood soaked dressings.

A major safety concern with the use of absorbent surgical dressings is the potential for the dressing to remain in the patient after surgery. In general, surgical dressings are usually white and are very visible before surgery. However, surgical dressings are less recognizable when they become saturated with the patient's blood during surgery. A blood-soaked surgical dressing could be mistaken for an organ of a patient and not removed from the body after surgery.

After surgery, blood-soaked surgical dressings can also be miscounted during counting. Using sterile packages and 5 abdominal pads as an example of a typical dressing counting procedure in surgery, operating room staff counted the number of absorbent dressings in each sterile package to ensure that there were indeed 5 abdominal pads in the package. If multiple sterile packs are required for the procedure, open all sterile packs and count to ensure that each pack contains 5 dressings. The total number of abdominal pads used in the procedure will be equal to (number of packs used x 5). If there is a discrepancy in the quantity of any pack, the defective pack cannot be used and it will be submitted as a complaint to the supplier. After surgery, collect used abdominal pads in a counting container and count to ensure the same amount of dressing before and after surgery. If the numbers don't match, the patient will be x-rayed to find any remaining dressing. According to statistics, about 0.02% of the surgical dressings in the world are accidentally left in the patient's body during the operation, which means that about 50,000 surgical dressings are accidentally left in the patient's body every year. It is important to note that accidentally leaving a dressing on a patient after surgery can be a very costly mistake for the hospital as it has to pay for the surgery to remove the dressing. In addition, patients can sue the hospital for compensation for any health problems caused by the dressing on the patient's body.

Since dressings accidentally left inside a patient can cause very serious health problems, many patents have been issued on improving the safety of surgical dressings. Currently, there are 4 types of major patents for safety-improving systems available to reduce the likelihood of dressings remaining in the patient after surgery, and these patented products are still available today:

(1) Use the bar code to track the cotton gauze absorbent pad of the surgical dressing. This patent is about the use of barcode labeling, a barcode is pasted on an absorbent pad, and the barcode is covered with a layer of plastic film. The bar code of each piece of dressing is scanned by a computer, and a specially designed software for recording the bar code is installed on the computer. Scan the barcodes of all surgical dressings before and after the operation to ensure that the numbers before and after the operation match and that no surgical dressings attached to the barcodes are lost.

(2) Using a radio frequency (RF) chip attached to the absorbent pad of the surgical dressing. The patent is about the use of a radio frequency chip attached to each piece of surgical dressing. After surgery, the patient's body is scanned using a radio frequency scanner to ensure that no dressing remains inside the patient. If a surgical dressing with an RF chip is left inside the patient, the scanner will sound an alarm.

For inventions involving the use of barcodes and RF chips, they require the use of computerized counting systems or embedded RF chip detection devices in the dressing. However, these patented systems and devices are not very secure, so in practice, in addition to barcodes and radio frequency chips, X-ray tracking elements still need to be attached to each piece of surgical dressing to ensure its safety. In addition, these additional computerized systems and detection equipment will greatly increase operating costs and postoperative operating time. According to the survey, the added cost of these additional safety devices is many times higher than the cost of the abdominal pad.

In addition to the above problems, there is a major problem that all the above inventions for improving safety performance are designed for surgical dressings of cotton woven gauze. However, cotton woven gauze has many disadvantages, as follows:

(1) Due to the open edges of the gauze and the frequent contact of human hands with the dressing during the manufacturing process, excessive lint, yarn ends, and other contaminants are often present on the gauze. It is well documented that yarn ends, contaminants, and lint can lead to surgical site infections as well as venule occlusion.

(2) Most smaller sized cotton gauze dressings do not have sewn selvage due to high labor costs. Therefore, gauze dressings cannot be used unrolled because of the yarn ends at the edges of the gauze. For larger, more expensive dressings, such as abdominal pads, the edges are selvedge or have the slit sewn in so they can be used unrolled.

(3) Gauze has a large mesh and therefore has low water absorption, which means that a large amount of gauze dressing is required to absorb blood and other exudates.

(4) Due to the high labor force content and the rapid rise in wages in most of the world's major gauze dressing production countries, the manufacturing cost remains high and is on the rise.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, the object of the present invention is to propose a kind of nonwoven surgical dressing and nonwoven surgical dressing bag.

In order to achieve the above object, on the one hand, the non-woven surgical dressing with enhanced safety according to the embodiment of the present invention includes:

A water-absorbent pad made of spunlace or needle-punched water-absorbent non-woven fabric;

at least one visual tracking strip, at least one said visual tracking strip is provided on said absorbent pad, said visual tracking strip is made of hydrophobic cloth and has at least one color distinct from the color of blood for use during surgery and Enhanced visual tracking performance of the nonwoven surgical dressing soaked in blood after surgery.

According to the non-woven surgical dressing provided by the embodiment of the present invention, by setting a visual tracking strip on the water-absorbent pad, the visual tracking strip is made of hydrophobic cloth and the color is obviously different from the color of blood, so that the visibility of the surgical dressing can be further improved. Sex, thereby enhancing the safety of surgical dressings in surgical use.

In addition, the non-woven surgical dressing according to the above-mentioned embodiments of the present invention can also have the following additional technical features:

According to an embodiment of the present invention, the spunlace or needle-punched non-woven fabric is made of one or more of viscose fibers, wood pulp fibers, polyester fibers, bamboo fibers, polypropylene fibers, and cotton fibers. ;

The weight range of the spunlace or needle-punched non-woven fabric is between 20-150 g/m2, and the width and length of the water-absorbing pad are both between 2-250 cm.

According to an embodiment of the present invention, the visual tracking strip is made of one or two kinds of fibers of polypropylene fiber or polyester fiber, and the visual tracking strip is connected to the absorbent body by ultrasonic welding, heat pressing or sewing Pad.

According to an embodiment of the present invention, the visual tracking strip is made of hydrophobic cloth with one or more fluorescent colors, at least one of which is obviously different from the color of blood.

According to an embodiment of the present invention, the visual tracking strip is made of hydrophobic cloth, the hydrophobic cloth does not contain X-ray imaging substances, and the color on the hydrophobic cloth does not have fluorescence, and the hydrophobic cloth At least one color on the body is significantly different from the color of blood.

According to an embodiment of the present invention, at least one visual tracking strip is connected to one of the upper and lower sides of the water-absorbing pad.

According to an embodiment of the present invention, at least one visual tracking strip is connected to the upper and lower surfaces of the water-absorbing pad.

According to an embodiment of the present invention, there is at least one visual tracking strip, and at least one visual tracking strip is wrapped around any edge of the water-absorbent pad and extends along the edge of the water-absorbent pad to cover the water-absorbent pad some or all of the edges.

According to an embodiment of the present invention, a part of the visual tracking strip extends to the outside of the absorbent pad to form a retrieval handle for retrieving the non-woven surgical dressing from the patient's body after surgery.

According to an embodiment of the present invention, the weight range of the hydrophobic cloth of the visual tracking strip is 10-120 g/m2, the width of the visual tracking strip is 1-50 cm, and the length is 1-120 cm .

According to an embodiment of the present invention, the water absorption per gram of the water-absorbent pad is greater than 6 grams of water, and the water absorption per gram of the visual tracking strip is less than 3 grams of water.

According to an embodiment of the present invention, a predetermined pattern is printed on the visual tracking strip and the retrieval handle, and the predetermined pattern includes straight lines, wavy lines, stripes, any geometric shapes, characters or numbers, wherein the The color of the predetermined pattern is distinct from the color of the visual tracking strip and the retrieval handle.

According to an embodiment of the present invention, at least one X-ray tracking element is provided on the non-woven surgical dressing on the absorbent pad.

According to an embodiment of the present invention, the X-ray tracking element is in the shape of a line or a belt, and the X-ray tracking line is made of polyvinyl chloride or rubber, and the polyvinyl chloride or rubber contains at least 50% (weight than) barium sulfate, and the X-ray tracking element is connected to the absorbent pad by ultrasonic welding, heat pressing or sewing process.

On the other hand, according to the non-woven surgical dressing bag of the embodiment of the present invention, comprising:

packaging;

A plurality of non-woven surgical dressings as described above, the multi-sheet non-woven surgical dressings are laminated and hermetically packaged in the package, and are used for surgical operations after sterilization.

According to an embodiment of the present invention, when the colors of the visual tracking strips are different, the different colors of the visual tracking strips are used to represent surgical dressings for different purposes in the operating room.

The non-woven surgical dressing package provided according to the embodiment of the present invention has the above-mentioned non-woven surgical dressing. By setting a visual tracking strip on the water-absorbing pad, the visual tracking strip is made of hydrophobic cloth and its color is obviously different from that of blood, so , can further improve the visibility of the surgical dressing, thereby enhancing the safety of the surgical dressing in surgical use.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or 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. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is the structural representation of an embodiment of the non-woven surgical dressing of enhanced security of the present invention;

Fig. 2 is the structural representation of another embodiment of the non-woven surgical dressing of enhanced safety of the present invention;

Fig. 3 is a partial enlarged view of A in Fig. 2 .

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, but cannot be construed as limitations to the present invention. Based on the embodiments in the present invention, those skilled in the art do not make creative work premise All other embodiments obtained below all belong to the protection scope of the present invention.

The present invention is based on the following studies and findings of the inventors:

Typically, surgical dressings include a superabsorbent absorbent pad, an X-ray tracking line. In some countries, each surgical dressing is also required to have a handle to remove the surgical dressing from the surgical site. At present, almost all surgical dressings are made of white cotton gauze material for absorbent pads and dark blue or green cotton fabric for handles. The X-ray tracking line is made of dark blue or green PVC or rubber, containing at least 50% barium sulfate by weight, and the tracking line can be developed under X-ray irradiation. The X-ray tracing line is hot-pressed on the cotton gauze through a heating roller and made into a water-absorbing pad. Cotton gauze absorbent pads are usually white, with dark X-ray tracing lines and handles easily visible prior to surgery. However, absorbent pads, handles and X-ray tracking lines are difficult to identify with the naked eye when surgical dressings are soaked in blood and turn a deep red.

In order to provide a higher visual tracking surgical dressing comprising an absorbent pad of non-woven material, the inventors conducted extensive research to develop a new platform to create an enhanced visual tracking system most suitable for non-woven absorbent pads. The following are some notable findings of the special properties of the nonwoven fabrics utilized by the inventors in the present invention:

(1) Ultrasonic welding is an important technology for non-woven surgical dressings. Some nonwovens can be joined with their own material or with accessories made of other materials by means of ultrasonic welding. Ultrasonic welding or joining is very energy efficient as it is an instantaneous process and requires no heating or cooling time. On the contrary, connecting accessories on the cotton gauze dressing needs to be realized by heating roller heat pressing, sewing, bonding and other processes; the heat pressing process requires heating rollers, and the sewing process is very labor-intensive and time-consuming. Adhesives contain chemicals. In contrast, ultrasonic welding does not require chemicals and any adhesives.

(2) The edge of the non-woven fabric will not unravel. Unlike the cotton gauze used to make cotton gauze surgical dressings, non-woven fabrics do not have yarn ends and particles at the edges after cutting, so the non-woven fabric dressing can be unfolded during surgery. In addition, visual tracking strips made of polypropylene or fibers of similar performance can be ultrasonically welded to the edges and adjacent areas of the nonwoven pad to further seal the edges of the nonwoven dressing.

(3) The weight, color and other physical properties of non-woven materials are very wide, and the cloth is easy to obtain. Nonwovens can be made in thicknesses from 15 g/m² to 300 g/m². Both normal and fluorescent colors can be printed on the non-woven fabric.

(4) Non-woven fabrics are more cost-effective than similar cotton woven gauze, because non-woven fabrics have a highly automated manufacturing process, and non-woven fabrics are more cost-effective than cotton woven gauze and other materials.

The safety-enhanced non-woven surgical dressing of the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to FIGS. 1 to 3 , a safety-enhancing non-woven surgical dressing provided according to an embodiment of the present invention includes an absorbent pad 10 and at least one visual tracking strip 12 .

Specifically, the absorbent pad 10 is made of hydroentangled or needle-punched absorbent non-woven fabric. The absorbent pad 10 is made of water-absorbent spunlace or needle-punched non-woven fabric, usually white. Spunlaced non-woven fabrics are layers of fibers laid in parallel or cross directions during web laying, and the fibers are entangled by using high-pressure water jets to form the non-woven fabric. Needle-punched non-woven fabrics are made by puncturing needles through needle curtains with hooks, mechanically winding fibers to reinforce and cohere fluffy fiber webs. Generally speaking, non-woven fabrics have the characteristics of high softness, high water absorption, low fluff and low cost.

Preferably, the spunlace or needle-punched non-woven fabric adopts one of viscose fiber (also known as rayon), wood pulp fiber, polyester fiber (PET), bamboo fiber, polypropylene fiber (PP), cotton fiber One or more fibers. Of the aforementioned fibers, nonwovens containing mixed rayon and polyester fibers have been used for more than 50 years in the manufacture of medical dressing products. Likewise, bamboo fibers and cotton fibers are also used to make spunlace nonwovens, which are used in medical products for more than 20 years. Currently, spunlace nonwovens containing a mixture of wood pulp fibers and polyester or polypropylene fibers have been used to make medical absorbent pads or wipes.

Preferably, the weight of the spunlace or needle-punched nonwoven fabric ranges from 20 to 150 g/m2, and the width and length of the water-absorbing pad 10 both range from 2 to 250 cm. The water absorption per gram of the absorbent pad 10 is greater than 6 grams of water.

The inventors have found that the water absorption of various types of spunlace or needle punched nonwovens is between 6 and 10 grams of water per gram of nonwoven. On the contrary, the water absorption of cotton gauze is between 4 and 6 grams of water per gram of cloth, depending on the warp and weft density of the cloth (that is, the number of yarns in both directions of warp and weft per square inch of gauze), the density The higher the value, the greater the water absorption. In addition to its high water absorption, non-woven fabrics also have a well-known characteristic, that is, they have high wicking speed and water absorption speed along the fiber direction of the non-woven fabric, which is due to the capillary flow produced by the characteristics of its fiber structure. effect. In contrast, cotton woven gauze has looser connections and very low capillarity. Spunlace or needle punched nonwovens have a higher water absorption rate and faster wicking speed, which means that nonwoven surgical dressings can absorb blood and body fluids more effectively than cotton woven gauze surgical dressings during surgery. In addition, the width and length range of the water-absorbing pad 10 can be relatively large or relatively small, so as to adapt to the use of different surgical locations. Smaller size non-woven surgical dressings can be used for small incisions.

At least one of said visual tracking strips 12 is provided on said absorbent pad 10, said visual tracking strips 12 are made of hydrophobic cloth and have at least one color distinct from the color of blood for use during and after surgery Enhanced visual tracking performance of the nonwoven surgical dressing soaked in blood.

Preferably, the visual tracking strip 12 can be made of one or two fibers of polypropylene fiber (PP) and polyester fiber (PET). Above the absorbent pad 10. Polypropylene or polyester fibers are hydrophobic in nature.

Preferably, the weight of the hydrophobic cloth is in the range of 10-120 g/m2, the width of the visual tracking strip 12 is 1-50 cm, and the length is 1-120 cm. The water absorption per gram of the visual tracking strip 12 is less than 3 grams of water.

Generally speaking, the water absorption per gram of polypropylene fiber or polyester fiber cloth is less than 3 grams. The visual tracking strip 12 of polypropylene fiber is usually made of spunbonded non-woven fabric, and the tracking strip of polyester fiber can be made of woven fabric or spunlace non-woven fabric. The weight of the hydrophobic cloth used to make the visual tracking strip 12 ranges from 10 to 120 grams per square meter.

For production, the visual tracking strip 12 is made of a roll of hydrophobic cloth, and its width can be relatively large, from 1 cm to 50 cm or even wider. Welding the hydrophobic cloth of the vision tracking strip 12 to the non-woven absorbent pad 10 by ultrasonic welding is not a problem. In contrast, the diameter of the X-ray tracking thread and suture thread used in the cotton gauze surgical dressing is only about 0.06 cm, which is much narrower than the width of the hydrophobic cloth of the visual tracking strip 12 used in the present invention. In addition, the cost of non-woven fabrics made of polypropylene fibers is much lower than the cost of X-ray tracking threads and fluorescent sutures. In addition, it is very energy-saving to connect the visual tracking strip 12 made of polypropylene fiber or polyester fiber to the non-woven absorbent pad 10 by ultrasonic welding. In contrast, the connection method of X-ray tracing thread and cotton gauze can be realized by high-temperature roller heat pressing, sewing or bonding. These connection methods are more costly and are not suitable for connecting the X-ray tracing line to the non-woven absorbent pad 10 .

It should be noted that the visual tracking bar 12 can be monochromatic or multi-colored, but it must form a significant contrast with the color of blood. Contrasting blood color can be any of the following: light blue, light green, yellow or white.

According to the non-woven surgical dressing provided by the embodiment of the present invention, by setting the visual tracking strip 12 on the water-absorbent pad 10, the visual tracking strip 12 is made of hydrophobic cloth and the color is obviously different from the color of blood, during and after surgery. The visual recognition of the dressing will be higher, so that the visibility of the surgical dressing can be further improved, thereby enhancing the safety of the surgical dressing in operation.

In addition, the non-woven surgical dressing of the present invention is different from traditional cotton gauze, and uses non-woven materials to avoid yarn ends and lint caused by the problem of open edges, and can be automatically produced by ultrasonic welding technology, solving the problem of traditional The problem of high cost and high pollution caused by the sewing manufacturing process is that the use of non-woven visual tracking strips 12 that have a clear contrast effect with the color of blood solves the problem of low recognition and legacy of traditional cotton gauze surgical dressings after surgery. The serious problem of high risk in the patient's body, and solves the technical problem of how to connect the visual tracking strip 12 with the water-absorbing pad 10 through the ultrasonic welding process, and at the same time ensures that the manufacturing cost of the medical surgical dressing is not greatly increased, making it possible Good social significance for widespread use.

During surgery, the enhanced visual tracking strip 12 makes it easier to identify blood-soaked surgical dressings inside the patient. After the operation, the visual tracking bar 12 with enhanced visual tracking performance makes the counting of blood-soaked surgical dressings more accurate and reliable. Compared to all other safety-enhancing surgical dressings currently on the market, the non-woven surgical dressing of the present invention is more effective and less costly in preventing post-operative dressings from remaining in the patient.

In some embodiments of the present invention, the safety-enhanced non-woven surgical dressing further includes at least one X-ray tracking element 11 , and at least one X-ray tracking element 11 is arranged on the water-absorbing pad 10 . Preferably, the X-ray tracking element is in the form of a line or a strip, and is connected to the water-absorbing pad 10 through ultrasonic welding, heat pressing, sewing and other processes. The X-ray tracing line is made of polyvinyl chloride or rubber containing at least 50% (weight ratio) of barium sulfate.

Advantageously, the visual tracking strip 12 is made of a hydrophobic cloth having one or more fluorescent colors, at least one of which is distinctly different from the color of blood. That is to say, in order to make the visual tracking strip 12 more visually recognizable, fluorescent printing pigments can be used instead of common printing pigments to print colors on the hydrophobic cloth. It should be noted that although the cost of fluorescent printing pigments is higher than that of ordinary pigments, it can significantly improve visual recognition.

It can be understood that, in other embodiments of the present invention, the visual tracking strip 12 is made of hydrophobic cloth, the hydrophobic cloth does not contain X-ray developing substances, and the color on the hydrophobic cloth does not have fluorescence, At least one color on the hydrophobic cloth is distinct from the color of blood. That is, the visual tracking strip 12 can also be made of hydrophobic cloth without fluorescent color, and the hydrophobic cloth does not contain X-ray developing substances. For example, ordinary printing pigments can be used to print colors on hydrophobic fabrics, and the colors will form a contrast with the blood color, thereby achieving the purpose of easy identification.

In some embodiments of the present invention, at least one visual tracking strip is connected to one of the upper and lower sides of the water-absorbing pad.

That is to say, the visual tracking strip 12 can be located on the upper surface or the lower surface of the water-absorbent pad 10, for example, the visual tracking strip 12 is connected to the upper surface or the lower surface of the edge of the water-absorbent pad 10 through an ultrasonic welding process, so as to be easily visible from the upper surface. Or viewed from the lower surface, the visual tracking bar 12 is easy to be observed.

In other embodiments of the present invention, at least one visual tracking strip is connected to the upper and lower surfaces of the water-absorbent pad, that is to say, the visual tracking strip is connected to the upper surface and the lower surface of the water-absorbent pad. In this way, the visual tracking bar 12 is easier to be observed, and the visual effect is better.

Advantageously, the visual tracking strip 12 is arranged on the edge of the water-absorbent pad 10 and extends along the edge of the water-absorbent pad 10 to cover part or all of the edge of the water-absorbent pad 10 .

That is to say, the visual tracking bar 12 is arranged along the edge of the water-absorbent pad 10, and the visual tracking bar 12 can be set on a part of the edge of the water-absorbent pad 10, or the visual tracking bar 12 can be set on the entire edge of the water-absorbent pad 10 .

In this embodiment, the visual tracking bar 12 is arranged on the edge of the water-absorbing pad 10. On the one hand, the edge of the water-absorbing pad 10 is usually easy to be found, so the visual tracking bar 12 positioned on the edge of the water-absorbing pad 10 is also easier to identify arrive. On the other hand, the visual tracking strip 12 is arranged on the edge of the water-absorbent pad 10, which does not affect the performance of the water-absorbent pad 10, especially its water-absorbing performance.

It should be noted that the absorbent pad 10 is generally rectangular, and the rectangular absorbent pad 10 has multiple sides. Therefore, in order to facilitate the arrangement of the visual tracking strip 12, in an example of the present invention, there is one visual tracking strip 12, and one visual tracking strip 12 is arranged on one side edge of the water-absorbent pad 10 and along the water-absorbent The edge of the pad 10 extends, ie a visual tracking strip 12 is provided on one edge of the absorbent pad 10 in this example. In another example of the present invention, there are two visual tracking strips 12, and the two visual tracking strips 12 are respectively arranged on both side edges of the water-absorbent pad 10 and extend along respective edges of the water-absorbent pad 10, That is, in this example, a visual tracking strip 12 is provided on two opposite edges of the water-absorbent pad 10 .

In these examples, the visual tracking strip 12 is welded to one edge or opposite edges of the absorbent pad 10 using an ultrasonic welding process. If the two edges of the absorbent pad 10 are welded with visual tracking strips 12, the visual recognition of the surgical dressing during and after the operation will be higher. However, the cost of welding will be higher due to the doubled amount of material and welding time.

1 to 2, in a preferred embodiment of the present invention, there is at least one visual tracking strip 12, and at least one visual tracking strip 12 is wrapped around any or all edges of the absorbent pad 10 and along the The edge of the absorbent pad extends to cover part or all of the edge of the absorbent pad 10 .

The inventors found that the cost-effective method of welding the visual tracking strip 12 to the side of the non-woven fabric absorbent pad 10 is: wrapping the edge of the non-woven fabric absorbent pad 10 with the visual tracking strip 12 and along the non-woven fabric absorbent pad 10 That is, a part of the visual tracking strip 12 covers the upper surface of the edge of the water-absorbent pad 10, and the other part is folded down to wrap the side of the water-absorbent pad 10 and then covered on the lower surface of the edge of the water-absorbent pad 10, With the non-woven surgical dressing made by this process, the visual tracking strip 12 can be seen from the upper surface, the lower surface and the side surface of the absorbent pad 10, and the visual tracking effect is better.

It can be understood that, in order to improve the visual effect, the visual tracking strip 12 located on the upper or lower surface of the edge of the water-absorbent pad 10 can be extended to a certain size inside the water-absorbent pad 10, that is, the width of the visual tracking strip 12 can be increased. In this way, the visual tracking bar 12 is more eye-catching and the visual effect is better.

1 and 2, in some embodiments of the present invention, a part of the visual tracking strip 12 extends to the outside of the absorbent pad 10 to form a retrieval handle 121 for retrieving the pad from the patient after surgery. Non-woven surgical dressing.

In some countries, surgical dressings are required to have a handle to facilitate removal of the dressing from the surgical site after surgery. The handle can also be used to lift surgical dressings when counting dressings after surgery. It would be very beneficial if the handles produced by the above techniques also had visual tracking properties. In this embodiment, after the visual tracking strip 12 is connected to the water-absorbent pad 10, it continues to extend, so that a part of the visual tracking strip 12 protrudes outside the water-absorbent pad 10, and the part of the visual tracking strip 12 extending out of the water-absorbent pad 10 can be used as a non-woven fabric Retrieval handle 121 of absorbent pad 10 . Since the retrieval handle 121 is made of a material with low absorbency to liquids and is printed in a color that contrasts with the blood, it is easy to identify and retrieve the absorbent pad before the operation and after being soaked with blood, so that during the operation The safety of abdominal surgical drapes has been greatly improved.

By connecting the visual tracking strip 12 to the edge of the absorbent pad 10 and the side surface, plus the retrieval handle 121 having the same visual tracking feature, the nonwoven surgical dressing of the present invention significantly enhances visual tracking performance and greatly Reduces the risk of leaving the dressing in the patient after surgery. In addition to improving the safety performance of surgical dressings, the visual tracking strip 12 can also be used as color coding of surgical dressings in another application. In some countries, surgical dressings are required to have the color corresponding to the operation. For example, the abdominal pad used for abdominal surgery is required to be green, then green becomes the color code for abdominal surgery. Dyeing of spunlace nonwovens is very expensive and sometimes not possible. In order to make the non-woven surgical dressing meet the coloring requirements of these countries, the visual tracking strip 12 on the surgical dressing can be printed and dyed in different colors to meet the coloring requirements of the surgical dressings in these countries.

In some embodiments of the present invention, predetermined patterns are printed on the visual tracking strip 12 and the retrieval handle 121, and the predetermined patterns include straight lines, wavy lines, stripes, any geometric shapes, characters or numbers, wherein the The color of the predetermined pattern is obviously different from the color of the visual tracking strip 12 and the retrieval handle 121. Preferably, the color of the predetermined pattern is consistent with the color of the cloth of the visual tracking strip 12 or the retrieval handle 121. The colors are contrasted for easier identification.

In a specific application, in order to make the visual tracking strip 12 or the retrieval handle 121 easy to be recognized by naked eyes before and after the operation, it is preferable to print blue stripes on the white background of the hydrophobic cloth used therefor. If some information needs to be displayed on the visual tracking strip 12 or the retrieval handle 121, the blue stripes can be replaced with words, numbers or other patterns on the white background of the hydrophobic cloth.

Preferably, these predetermined patterns can be printed with fluorescent printing materials. As mentioned above, fluorescent light can make the visual tracking strip 12 more visually recognizable.

According to an embodiment of the present invention, a non-woven surgical dressing package is also provided, including a package and a plurality of non-woven surgical dressings as described in the above-mentioned embodiments, and the plurality of non-woven surgical dressings are laminated and sealed and packaged in a within the package.

Surgical dressing of the present invention is used for absorbing blood and liquid during surgical operation, and surgical dressing of the present invention can be packed in the package first, and package can be packaging bag or tray, is sterilized to form non-woven surgical dressing after sealing again package, and then used in surgery.

In specific applications, the visual tracking strips can be of different colors, and different colors of the visual tracking strips can be used to represent surgical dressings for different purposes in the operating room.

The non-woven surgical dressing package provided according to the embodiment of the present invention has the above-mentioned non-woven surgical dressing. By setting the visual tracking strip 12 on the water-absorbent pad 10, the visual tracking strip 12 is made of hydrophobic cloth and has the same color as blood. Obviously different, like this, can further improve the visibility of surgical dressing, and then enhance the safety of surgical dressing in surgical use.

The following examples 1 to 10 of the present invention illustrate the visual tracking effect of the safety-enhanced non-woven surgical dressing of the present invention.

Examples 1 to 5:

The following five examples are used to demonstrate the enhanced visual tracking effect. Compared with the conventional cotton gauze surgical dressing, the tracking performance of the non-woven surgical dressing with visual tracking strip 12 of the present invention is significantly enhanced.

Example 1 is a standard cotton woven gauze surgical dressing with dual X-ray tracking lines in two colors. Examples 2 through 5 are different embodiments of the nonwoven surgical dressing of the present invention with the fluorescent color of the visual tracking strip 12 and the regular aqua color. The comparison of various examples shows that after the surgical dressing is soaked with blood, the non-woven dressing of the fluorescent color visual tracking strip 12 has the highest postoperative visibility, followed by the common color visual tracking strip 12, and finally the double X-ray tracking line Cotton gauze surgical dressings had the worst visual tracking.

Embodiments 6 to 10:

Below are 5 additional examples for comparing the effect of the non-woven surgical dressing of the present invention with various material combinations with conventional cotton gauze surgical dressing with fluorescent sutures to enhance the visual tracking performance. Example 6 is a conventional cotton gauze surgical dressing with fluorescent sutures. Embodiments 7 to 10 are various embodiments of nonwoven surgical dressings with fluorescent colored vision tracking strips 12 , with or without retrieval handles 121 . A comparison of the various examples shows that a non-woven dressing with a visual tracking strip 12 and a handle provides the best enhanced visual tracking during and after surgery when the dressing is soaked in blood, followed by A nonwoven dressing with visually-tracking nonwoven strips around the edges but no handles, followed by a nonwoven dressing with only two visually-tracking strips12 on either side, then a nonwoven dressing with only one visually-tracking strip12 on one side A cloth dressing, and finally a dressing with fluorescent thread sewn onto a cotton woven gauze pad.

In summary, the safety-enhanced non-woven surgical dressing of the present invention includes a non-woven absorbent pad 10, at least one visual tracking strip 12, which is made of hydrophobic cloth and printed with a contrasting color with blood. Color, compared with conventional cotton woven gauze surgical dressings, the visual tracking effect of the non-woven dressing with visual tracking strip 12 is much better than that of cotton woven gauze surgical dressings during and after surgery. In addition, when ultrasonic waves are used to weld the visual tracking strip 12 on the edge of the non-woven fabric absorbent pad 10 and extend a part from the water-absorbent pad 10, the stretched visual tracking strip 12 forms a retrieval tool for the non-woven surgical dressing. Hand 121. The preferred embodiment of the non-woven surgical dressing with enhanced visual tracking performance of the present invention includes a visual tracking strip 12 and a retrieval handle 121, with two colors: white spunbonded PP non-woven fabric, colored printed on white PP cloth The predetermined pattern (non-white pattern); wherein, the predetermined pattern printed includes straight lines, wavy lines, stripes, any geometric shapes, characters or numbers. The visual tracking strip 12 may have a fluorescent color. During surgery, the visual tracking of the visual tracking strip 12 and retrieval handle 121 is greatly enhanced, making it easier to find blood-soaked surgical dressings inside the patient. Post-operatively, the enhanced visibility of the visual tracking strip 12 and retrieval handle 121 enables more reliable counting of blood-soaked surgical dressings.

The non-woven surgical dressing with enhanced visual tracking performance of the present invention is easy to use, and does not require expensive additional equipment and additionally equipped operators. The effect of high visual enhancement makes the non-woven surgical dressing of the present invention easy to visually track, and it is also easier to find the non-woven dressing from the patient's body during the operation, and the risk of the surgical dressing being left in the patient's body is minimized. After surgery, the visual tracking strip 12 and retrieval handle 121 make counting blood-soaked surgical dressings easier and more accurate. In addition, due to the low cost of the non-woven absorbent pad 10 and the fabric used to make the visual tracking strip 12, and the high efficiency of the automated ultrasonic welding process, the cost of the non-woven surgical dressing of the present invention is superior to other conventional cotton fabrics for improved safety. Gauze surgical dressings are easier to be widely used in hospitals around the world.

In addition, the ultrasonic welding process enables the various components of the surgical dressing to be connected through automated production, such as the absorbent pad 10, the visual tracking strip 12, and the retrieval handle 121, thus subversively changing the current cotton yarn dressing industry that can only be used by sewing. The traditional production process is used to connect the various components of the gauze surgical dressing. The ultrasonic welding process is only suitable for spunlace or needle-punched absorbent non-woven materials containing rayon fibers, wood pulp fibers, cotton fibers, polyester fibers, polypropylene fibers or bamboo fibers, not for cotton gauze.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

The above is only a preferred embodiment of the present invention, and does not therefore limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or direct/indirect use All other relevant technical fields are included in the patent protection scope of the present invention.

Claims

A safety-enhancing non-woven surgical dressing, characterized in that it comprises:

A water-absorbent pad made of spunlace or needle-punched water-absorbent non-woven fabric;

at least one visual tracking strip, at least one said visual tracking strip is provided on said absorbent pad, said visual tracking strip is made of hydrophobic cloth and has at least one color distinct from the color of blood for use during surgery and Enhanced visual tracking performance of the nonwoven surgical dressing soaked in blood after surgery.
The safety-enhancing non-woven surgical dressing according to claim 1, wherein the spunlace or needle-punched non-woven fabric adopts viscose fiber, wood pulp fiber, polyester fiber, bamboo fiber, polypropylene fiber , one or more fibers in cotton fibers;

The weight range of the spunlace or needle-punched non-woven fabric is between 20-150 g/m2, and the width and length of the water-absorbing pad are both between 2-250 cm.
The safety-enhancing non-woven surgical dressing according to claim 1, wherein the visual tracking strip is made of polypropylene fiber or polyester fiber, and the visual tracking strip is welded by ultrasonic welding, heat pressing or sewing process attached to the absorbent pad.
The safety-enhancing non-woven surgical dressing according to claim 1 or 3, wherein the visual tracking strip is made of hydrophobic cloth with one or more fluorescent colors, at least one of the fluorescent colors The color is obviously different from the color of blood.
The safety-enhancing non-woven surgical dressing according to claim 1 or 3, wherein the visual tracking strip is made of hydrophobic cloth, and the hydrophobic cloth does not contain X-ray imaging substances, and the The colors on the hydrophobic cloth are non-fluorescent, and at least one of the colors on the hydrophobic cloth is significantly different from the color of blood.
The safety-enhancing non-woven surgical dressing according to claim 1 or 3, wherein at least one visual tracking strip is connected to one of the upper and lower surfaces of the water-absorbing pad.
The safety-enhancing non-woven surgical dressing according to claim 1 or 3, wherein at least one visual tracking strip is connected to the upper and lower surfaces of the water-absorbing pad.
The safety-enhancing non-woven surgical dressing according to claim 1 or 3, wherein there is at least one visual tracking strip, and at least one visual tracking strip is wrapped around any edge of the absorbent pad and along the The edge of the absorbent pad extends to cover part or all of the edge of the absorbent pad.
The safety-enhancing non-woven surgical dressing according to claim 1 or 3, wherein a portion of the visual tracking strip extends to the outside of the absorbent pad to form a retrieval handle for removal from the patient after surgery. The nonwoven surgical dressing is retrieved in vivo.
The safety-enhancing non-woven surgical dressing according to claim 1 or 3, wherein the weight range of the hydrophobic cloth of the visual tracking strip is between 10 and 120 grams/square meter, and the visual tracking The strips have a width of 1-50 cm and a length of 1-120 cm.
The safety-enhancing non-woven surgical dressing according to claim 1, wherein the water absorption per gram of the water-absorbing pad is greater than 6 grams of water, and the water absorption per gram of the visual tracking strip is less than 3 grams of water.
The safety-enhancing non-woven surgical dressing according to claim 9, wherein predetermined patterns are printed on the visual tracking strip and the retrieval handle, and the predetermined patterns include straight lines, wavy lines, and stripes. , any geometric shape, letter or number, wherein said predetermined pattern is of a distinctly different color than said visual tracking strip and said retrieval handle.
The safety-enhanced non-woven surgical dressing according to claim 1, characterized in that at least one X-ray tracking element is provided on the water-absorbing pad.
The safety-enhancing non-woven surgical dressing according to claim 13, wherein the X-ray tracking part is in the shape of a line or a belt, and the X-ray tracking line is made of polyvinyl chloride or rubber, so The polyvinyl chloride or rubber contains at least 50% (weight ratio) of barium sulfate, and the X-ray tracking element is connected to the water-absorbing pad through ultrasonic welding, heat pressing or sewing process.
A kind of non-woven surgical dressing bag, is characterized in that, comprises:

packaging;

A plurality of non-woven surgical dressings according to any one of claims 1 to 14, which are laminated and hermetically packaged in the package, and used for surgical operations after sterilization.
The non-woven surgical dressing package according to claim 15, wherein when the colors of the visual tracking strips are different, the different colors of the visual tracking strips are used to represent surgical dressings for different purposes in the operating room.