CN113855393A

CN113855393A - Non-woven fabric surgical dressing with enhanced safety and non-woven fabric surgical dressing bag

Info

Publication number: CN113855393A
Application number: CN202111210948.6A
Authority: CN
Inventors: 陈仲璜
Original assignee: Gaoxian Medical Technology Huizhou Co ltd
Current assignee: Gaoxian Medical Technology Huizhou Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2021-12-31

Abstract

The invention discloses a non-woven fabric surgical dressing with enhanced safety and a non-woven fabric surgical dressing bag, wherein the non-woven fabric surgical dressing comprises a water absorption pad and at least one visual tracking strip, and the water absorption pad is made of spunlace or needle-punched water absorption non-woven fabrics; at least one visual tracking strip is arranged on the water absorption pad, the visual tracking strip is made of hydrophobic cloth and has at least one color obviously different from the color of blood, and the visual tracking strip is used for enhancing the visual tracking performance of the non-woven fabric surgical dressing soaked with blood during and after the operation. According to the non-woven fabric surgical dressing provided by the embodiment of the invention, the visual tracking strip is arranged on the water absorption pad, is made of hydrophobic cloth and has a color obviously different from that of blood, so that the visibility of the surgical dressing can be further improved, and the safety of the surgical dressing in surgical use is further enhanced.

Description

Non-woven fabric surgical dressing with enhanced safety and non-woven fabric surgical dressing bag

Technical Field

The invention relates to medical dressings, in particular to a non-woven fabric surgical dressing and a non-woven fabric surgical dressing bag for enhancing safety.

Background

Surgical dressings typically include an absorbent pad, an X-ray tracking element, and a safe retrieval handle for larger incision surgery. In surgery, surgical dressings are used primarily to absorb blood and fluid exudates from a surgical site. The X-ray tracing element is typically made of PVC rubber wire containing at least 50% barium sulfate (by weight) which allows the X-ray to be radio-opaque and visualized under an X-ray machine so that if the surgical dressing is left in the patient, it can be looked up by X-ray. The safety retrieval handle is used to pull the surgical dressing from the patient after surgery, and it may also be used to pull the blood-soaked dressing when counting the dressings after surgery.

One of the major safety issues with the use of water absorbent surgical dressings is that the dressings may remain in the patient after surgery. In general, surgical dressings are usually white and are readily apparent prior to surgery. However, when the surgical dressing is saturated with blood from the patient during surgery, its visibility is reduced. Blood-saturated surgical dressings may be mistaken for an organ of a patient that has not been removed from the body after surgery.

After surgery, surgical dressings saturated with blood may also be in error during the counting process. The operating room staff exemplified sterile packaging and 5 belly pads as typical dressing counting procedures in surgery, counting the number of absorbent dressings per sterile packaging to ensure that there were indeed 5 belly pads in the packaging. If multiple sterile packs are required for the procedure, all sterile packs are opened and counted to ensure that there are 5 dressings in each pack. The total number of abdominal pads used in the procedure will be equal to (number of packs used x 5). If any of the packages do not match in quantity, the defective package of products cannot be used and submitted to the supplier as a complaint. After surgery, the used abdominal pad is collected in a counting container and counted to ensure the same number of dressings before and after the surgery. If the number does not match, the patient will undergo X-ray examination to find the dressing left in the body. Statistically, about 0.02% of the surgical dressings are accidentally left in the patient during the operation, which means that about 5 ten thousand surgical dressings are accidentally left in the patient every year. It should be noted that accidental retention of the dressing in the patient's body after surgery is a very expensive error for the hospital, since the hospital must incur the surgical expense of removing the dressing. In addition, patients may also complain of hospitals to claim compensation for any health problems caused by dressings in patients.

Since accidental leaving of the dressing in the patient's body can cause very serious health problems, there are many patents on improving the safety of surgical dressings. Currently, there are 4 main patents of safety improvement systems available to reduce the possibility of the dressing remaining in the patient after surgery, and these patent products are still available to date:

(1) the cotton woven gauze absorbent pad of the surgical dressing is tracked by utilizing the bar code. The patent relates to the use of bar code labels, wherein a bar code is adhered to a water absorption pad, and a layer of plastic film is covered on the bar code. The bar code of each dressing is scanned by a computer, and the computer is provided with a specially designed software for recording the bar code. Barcode scanning records are performed on all surgical dressings before and after surgery to ensure that the number matches before and after and that no surgical dressings are lost to which the barcode is attached.

(2) A Radio Frequency (RF) chip was used to attach to the absorbent pad of the surgical dressing. This patent relates to the use of a radio frequency chip attached to each surgical dressing. After surgery, the patient's body is scanned using a radio frequency scanner to ensure that no dressing remains in the patient. If the surgical dressing with the RF chip is left in the patient, the scanner will sound an alarm.

For inventions involving the use of bar codes and radio frequency chips, they require the use of a computer counting system or the embedding of a radio frequency chip detection device in the dressing. However, these patented systems and devices are not very secure, and therefore, in practice, in addition to the bar code and rf chip, an X-ray tracker must be attached to each surgical dressing to ensure its security. Furthermore, these additional computerized systems and detection devices would greatly increase the cost of the procedure and the post-operative procedure time. These additional safety devices have been investigated to add cost many times higher than the cost of the belly pad.

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

(1) due to the open edges of the gauze and the frequent contact of the hands with the dressing during the manufacturing process, excessive lint, yarn ends and other contaminants often appear on the gauze. There is ample evidence that yarn ends, contaminants and lint can cause surgical site infections and small vein occlusion.

(2) Due to labor costs, most smaller cotton gauze dressings do not have a sewn selvedge. Therefore, the gauze dressing cannot be unfolded for use because of the yarn ends at the edges of the gauze. For larger, more expensive dressings, such as belly pads, the edges are selvedges or the cut edges are sewn in, and can be deployed for use.

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

(4) Due to the high labor intensity, the wage level of the main producing countries of most gauze dressings in the world is rapidly increased, and the manufacturing cost is high and tends to be increased.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide a non-woven fabric surgical dressing and a non-woven fabric surgical dressing bag.

To achieve the above objects, in one aspect, a non-woven fabric surgical dressing with enhanced safety according to an embodiment of the present invention includes:

the water absorption pad is made of spunlace or needle-punched water absorption non-woven fabrics;

at least one visual tracking strip, at least one visual tracking strip is arranged on the water absorption pad, the visual tracking strip is made of hydrophobic cloth and has at least one color obviously different from the color of blood, and the visual tracking strip is used for enhancing the visual tracking performance of the non-woven fabric surgical dressing soaked with blood during and after operations.

According to the non-woven fabric surgical dressing provided by the embodiment of the invention, the visual tracking strip is arranged on the water absorption pad, is made of hydrophobic cloth and has a color obviously different from that of blood, so that the visibility of the surgical dressing can be further improved, and the safety of the surgical dressing in surgical use is further enhanced.

In addition, the non-woven fabric surgical dressing according to the above embodiment of the present invention may also have the following additional technical features:

according to one embodiment of the invention, the spunlace or needle-punched non-woven fabric is made of one or more of viscose fiber, wood pulp fiber, polyester fiber, bamboo fiber, polypropylene fiber and cotton fiber;

the weight range of the spunlace or needle-punched non-woven fabric is 20-150 g/square meter, and the width and length ranges of the water absorption pad are 2-250 cm.

According to one embodiment of the invention, the visual trace strip is made of one or both of polypropylene or polyester fibers, and the visual trace strip is attached to the absorbent pad by ultrasonic welding, heat pressing or sewing.

According to one embodiment of the invention, the visual tracking strip 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.

According to one embodiment of the present invention, the visual tracking strip is made of a hydrophobic cloth, the hydrophobic cloth is free of X-ray developing substances, colors on the hydrophobic cloth are free of fluorescence, and at least one color on the hydrophobic cloth is significantly different from a color of blood.

According to one embodiment of the present invention, at least one of the visual trace strips is attached to one of the upper and lower surfaces of the absorbent pad.

According to one embodiment of the present invention, at least one visual trace strip is attached to both the upper and lower surfaces of the absorbent pad.

According to one embodiment of the invention, the visual tracking strip is at least one, and at least one visual tracking strip is wrapped on any edge of the absorbent pad and extends along the edge of the absorbent pad so as to cover part or all of the edge of the absorbent pad.

According to one embodiment of the invention, a portion of the visual tracking strip extends outside the absorbent pad to form a retrieval handle for retrieving the non-woven surgical dressing from within the patient after surgery.

According to an embodiment of the present invention, the weight of the hydrophobic fabric of the visual tracking strip ranges from 10 to 120 g/m, the width of the visual tracking strip ranges from 1 to 50 cm, and the length of the visual tracking strip ranges from 1 to 120 cm.

According to one embodiment of the invention, the absorbent pad has an absorbent capacity of greater than 6 grams of water per gram and the visual tracking strip has an absorbent capacity of less than 3 grams of water per gram.

According to one embodiment of the invention, the visual trace strip and the retrieval handle are printed with a predetermined pattern comprising lines, wavy lines, stripes, any geometric shape, text or numbers, wherein the color of the predetermined pattern is substantially different from the color of the visual trace strip and the retrieval handle.

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

According to one embodiment of the present invention, the X-ray tracing member is in a linear or strip shape, the X-ray tracing line is made of polyvinyl chloride or rubber containing at least 50 wt% barium sulfate, and the X-ray tracing member is attached to the water absorbing pad by ultrasonic welding, hot pressing or sewing.

In another aspect, a non-woven fabric surgical dressing pack according to an embodiment of the present invention comprises:

a package;

a plurality of the non-woven fabric surgical dressings described above, which are stacked and hermetically packaged in the package member, and sterilized for use in a surgical operation.

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

According to the non-woven fabric surgical dressing bag provided by the embodiment of the invention, the visual tracking strip is arranged on the water absorption pad, is made of hydrophobic fabric and has a color obviously different from that of blood, so that the visibility of the surgical dressing can be further improved, and the safety of the surgical dressing in surgical use is further enhanced.

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

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic representation of the construction of one embodiment of a non-woven surgical dressing of the present invention with enhanced safety;

FIG. 2 is a schematic representation of the construction of another embodiment of a non-woven surgical dressing of the invention with enhanced safety;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.

The present invention has been completed based on the following studies and findings of the inventors:

typically, the surgical dressing includes a super absorbent pad, an X-ray tracing. In some countries, it is also desirable to have a handle for each surgical dressing to remove the surgical dressing from the surgical site. At present, almost all surgical dressings are made of white cotton woven gauze materials to form absorbent pads, and dark blue or green cotton woven fabrics to form handles. The X-ray tracing line is made of dark blue or green PVC or rubber, contains at least 50% by weight of barium sulfate, and can be developed under X-ray irradiation. The X-ray tracing line is connected on the cotton woven gauze through a heating roller in a hot pressing way and made into a water absorption pad. The cotton gauze absorbent pad is usually white, and dark X-ray tracing lines and a handle can be easily seen before operation. However, when the surgical dressing becomes saturated with blood to a deep red color, the absorbent pad, the handle, and the X-ray tracing lines are difficult to identify with the naked eye.

In order to provide a more visually tracking surgical dressing comprising a pad of nonwoven material, the inventors have conducted extensive studies to develop a new platform to create an enhanced visual tracking system that is best suited for nonwoven pads. The following are some significant discoveries of the particular properties of the nonwoven fabrics utilized by the inventors in the present invention:

(1) ultrasonic welding is an important technique for non-woven fabric surgical dressings. Some nonwovens may be joined together with fittings made of the material itself or of other materials by ultrasonic welding. Ultrasonic welding or joining is very energy efficient because it is a transient process that does not require the consumption of heating or cooling time. On the contrary, the connection of accessories on the cotton woven gauze dressing is realized by the processes of hot pressing by a heating roller, sewing, bonding and the like; the hot pressing process requires heating the rollers, the sewing process is very labor and time consuming, and the adhesive used in the bonding process contains chemical substances. In contrast, ultrasonic welding does not require chemicals and any adhesives.

(2) The edges of the non-woven fabric do not unravel. Different from cotton woven gauze used for manufacturing cotton woven gauze surgical dressing, the edge of the non-woven fabric after cutting does not have yarn ends and particles, so that the non-woven fabric dressing can be unfolded for use in surgery. Additionally, a visual trace of polypropylene or similar performance fibers may be ultrasonically welded to the edges and side areas of the nonwoven mat to further seal the edges of the nonwoven dressing.

(3) The non-woven fabric material has wide physical properties such as weight, color and the like, and the fabric is easy to obtain. The nonwoven fabric may be made to a thickness of 15 grams per square meter to 300 grams per square meter. Both common and fluorescent colors can be printed on the non-woven fabric.

(4) Non-woven fabrics are more cost effective than cotton woven gauze of the same type because they have a highly automated manufacturing process, which is more cost effective than cotton woven gauze and other materials.

A non-woven fabric surgical dressing with enhanced safety according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

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

Specifically, the absorbent pad 10 is made of spunlace or needle-punched absorbent nonwoven fabric. The absorbent pad 10 is made of water-absorbent spunlaced or needle-punched nonwoven fabric, and is generally white in color. The spunlace nonwoven fabric is a nonwoven fabric formed by layering fibers in parallel or cross directions during web laying, and the fibers are wound by using high-pressure water jets. The needle-punched non-woven fabric is manufactured by performing needle punching action through a needle curtain with hooks, mechanically winding fibers and reinforcing and clasping fluffy fiber webs. Generally, nonwoven fabrics are characterized by high softness, high water absorption, low fluff and low cost.

Preferably, the spunlaced or needle-punched non-woven fabric is made of one or more of viscose (also called rayon), wood pulp fiber, Polyester (PET), bamboo fiber, polypropylene (PP) fiber and cotton fiber. For the above fibers, non-woven fabrics containing mixed rayon and polyester fibers have been used in the manufacture of medical dressing products for over 50 years. Also, bamboo fibers and cotton fibers have been used to make spunlace nonwoven fabrics for medical products for over 20 years. Currently, spunlace nonwoven fabrics containing a mixture of wood pulp fibers and polyester or polypropylene fibers have been used to make medical absorbent pads or wet wipes.

Preferably, the weight of the spunlace or needle-punched non-woven fabric is in the range of 20 to 150 g/m, and the width and length of the absorbent pad 10 are both in the range of 2 to 250 cm. The absorbent pad 10 has a water absorption capacity of greater than 6 grams of water per gram.

The inventors have found that various types of spunlace or needle-punched nonwoven absorb between 6 and 10 grams of water per gram of nonwoven. In contrast, cotton woven gauze absorbs between 4 and 6 grams of water per gram of cloth, depending on the cloth's warp and weft density (i.e., the number of yarns in both the warp and weft directions per square inch of the gauze), with higher densities yielding greater water absorption. In addition to high water absorption, nonwovens have a well-known characteristic of high wicking and absorption rates along the fibers of the nonwoven due to capillary action caused by the characteristics of their fibrous structure. In contrast, cotton gauze has a loose connection and very low capillarity. Hydroentangled or needled nonwovens have a higher water absorption and faster wicking speed, which means that nonwoven surgical dressings are able to absorb blood and body fluids more effectively during surgery than cotton gauze surgical dressings. In addition, the absorbent pad 10 may have a larger width and length range, or may have a smaller width and length range, so as to adapt to the use of different operation positions, for example, for the position with a larger incision, a non-woven fabric operation dressing with a larger size may be used, and for some narrow incisions, a non-woven fabric operation dressing with a smaller size may be used.

At least one of the visual tracking strips 12 is provided on the absorbent pad 10, the visual tracking strip 12 is made of hydrophobic cloth and has at least one color that is significantly different from the color of blood, for enhancing the visual tracking performance of the blood-soaked non-woven surgical dressing during and after surgery.

Preferably, the visual trace strip 12 may be made of one or both of polypropylene fiber (PP) and polyester fiber (PET), and the visual trace strip 12 is attached to the absorbent pad 10 by ultrasonic welding, heat pressing or sewing. Polypropylene fibers or polyester fibers are hydrophobic in nature.

Preferably, the weight of the hydrophobic fabric is in the range of 10 to 120 g/m, the width of the visual tracking strip 12 is 1 to 50 cm, and the length is 1 to 120 cm. The visual tracking strip 12 has a water uptake per gram of less than 3 grams of water.

Generally, the water absorption per gram of polypropylene or polyester fabric is less than 3 grams. The visual tracking strip 12 of polypropylene fibers is typically made of a spunbond nonwoven and the tracking strip of polyester fibers may be made of a woven or spunlace nonwoven. The weight of the hydrophobic cloth used to make the visual tracking strips 12 ranges from 10 to 120 grams per square meter.

For production, the visual tracking strip 12 is made from a roll of hydrophobic fabric and may have a width that is relatively large, ranging from 1 cm to 50 cm or even wider. Ultrasonic welding of the hydrophobic cloth of the visual tracking strip 12 to the nonwoven absorbent pad 10 is not a problem. In contrast, the X-ray tracing lines and sutures used in cotton gauze surgical dressings are only about 0.06cm in diameter, much narrower than the width of the hydrophobic cloth of the visual tracing bar 12 used in the present invention. In addition, the cost of nonwoven fabrics of polypropylene fibers is much lower than the cost of X-ray tracing and fluorescent stitching. In addition, the visual trace strips 12 made of polypropylene or polyester fibers are attached to the nonwoven fabric absorbent pad 10 by ultrasonic welding, which is very energy-saving. In contrast, the connection of the X-ray tracing line to the cotton woven gauze may be achieved by high temperature roller heat pressing, sewing or gluing. These attachment methods are more costly and are not suitable for attaching X-ray traces to the nonwoven absorbent pad 10.

It should be noted that the visual trace 12 may be a single color or multiple colors, but must be in significant contrast to the color of blood. Contrasting with the blood color can be any of the following colors: bluish, greenish, yellow or white.

According to the non-woven fabric surgical dressing provided by the embodiment of the invention, the visual tracking strip 12 is arranged on the absorbent pad 10, the visual tracking strip 12 is made of hydrophobic cloth and has a color which is obviously different from that of blood, and the visual identification degree of the surgical dressing during and after the operation is higher, so that the visibility of the surgical dressing can be further improved, and the safety of the surgical dressing in the operation can be further enhanced.

In addition, the non-woven fabric surgical dressing is different from the traditional cotton woven gauze, adopts non-woven fabric materials, avoids yarn ends and cotton velvet caused by the problem of edge opening, can be automatically produced through an ultrasonic welding machine technology, solves the problems of high cost and high pollution caused by the traditional sewing and manufacturing process, has the most key point that the serious problems of low postoperative identification and large risk left in a patient body of the traditional cotton woven gauze surgical dressing are solved by adopting the non-woven fabric visual tracking strip 12 with an obvious contrast effect with the blood color, solves the technical problem of how to connect the visual tracking strip 12 with the water absorption pad 10 through an ultrasonic welding process, and simultaneously ensures that the manufacturing cost of the medical surgical dressing is not greatly improved, so that the non-woven fabric surgical dressing has good social significance for wide popularization and use.

The visual tracking strip 12, which enhances visual tracking during the surgical procedure, makes it easier to identify the surgical dressing soaked with blood in the patient. After the operation, the visual tracking strip 12 with enhanced visual tracking performance enables the counting of the surgical dressing soaked with blood to be more accurate and reliable. Compared with all other surgery dressings with enhanced safety in the current market, the non-woven fabric surgery dressing provided by the invention is more effective in preventing the dressing from remaining in the body of a patient after surgery, and is lower in cost.

In some embodiments of the present invention, the safety-enhanced nonwoven fabric surgical dressing further comprises at least one X-ray tracing member 11, wherein at least one X-ray tracing member 11 is disposed on the absorbent pad 10. Preferably, the X-ray tracing element is in a linear or strip shape and is connected to the absorbent pad 10 by ultrasonic welding, hot pressing, sewing, etc. The X-ray tracing line is made of polyvinyl chloride or rubber, and the polyvinyl chloride or rubber contains at least 50% (weight ratio) of barium sulfate.

Advantageously, the visual tracking strip 12 is made of a hydrophobic cloth with one or more fluorescent colours, at least one of which is distinctly different from the colour of the blood. That is, in order to make the visual trace strip 12 more visually recognizable, fluorescent printing pigments may be used to print colors on the hydrophobic cloth instead of ordinary printing pigments. It is noted that although the cost of fluorescent printing pigments is higher than that of ordinary pigments, the visual recognition can be significantly improved.

It is understood that in other embodiments of the present invention, the visual tracking strip 12 is made of a hydrophobic cloth that is free of X-ray developable substances and has no fluorescence in color, at least one color on the hydrophobic cloth being significantly different from the color of blood. That is, the visual trace bar 12 may be made of a hydrophobic cloth having no fluorescent color, and the hydrophobic cloth does not contain an X-ray developing substance. For example, a hydrophobic cloth may be printed with a color that contrasts with the blood color using a common printing pigment to achieve easy identification.

In some embodiments of the present invention, at least one of the visual trace strips is attached to one of the upper and lower surfaces of the absorbent pad.

That is, the visual trace strips 12 may be located on the upper or lower surface of the absorbent pad 10, for example, the visual trace strips 12 are attached to the upper or lower surface of the edge of the absorbent pad 10 by an ultrasonic welding process, so that the visual trace strips 12 are easily viewed from the upper or lower surface.

In other embodiments of the present invention, at least one visual trace strip is connected to both the upper and lower surfaces of the absorbent pad, that is, the visual trace strips are connected to both the upper surface and the lower surface of the absorbent pad, so that the visual trace strips 12 are easier to observe and have better visual effect.

Advantageously, a visual tracking strip 12 is provided at the edge of the pad 10 and extends along the edge of the pad 10 to cover part or all of the edge of the pad 10.

That is, the visual tracking strip 12 is provided along the edge of the absorbent pad 10, and the visual tracking strip 12 may be provided on a part of the edge of the absorbent pad 10, or the visual tracking strip 12 may be provided on the entire edge of the absorbent pad 10.

In the present embodiment, the visual trace strips 12 are provided at the edges of the absorbent pad 10, and on the one hand, the edges of the absorbent pad 10 are usually easy to find, so the visual trace strips 12 on the edges of the absorbent pad 10 are also easier to identify. On the other hand, the visual trace strips 12 are provided on the edges of the absorbent pad 10, and do not affect the performance of the absorbent pad 10, particularly its absorbent performance.

It should be noted that the absorbent pad 10 is generally rectangular, and the rectangular absorbent pad 10 has a plurality of sides. Therefore, in order to facilitate the arrangement of the visual tracking strips 12, in one example of the present invention, the visual tracking strip 12 is one, and one visual tracking strip 12 is provided at one side edge of the absorbent pad 10 and extends along the edge of the absorbent pad 10, that is, in this example, one visual tracking strip 12 is provided on one edge of the absorbent pad 10. In another example of the present invention, there are two visual tracking strips 12, and the two visual tracking strips 12 are respectively disposed on two side edges of the absorbent pad 10 and respectively extend along respective edges of the absorbent pad 10, that is, in this example, one visual tracking strip 12 is respectively disposed on two opposite edges of the 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 absorbent pad 10 is welded at both edges with the visual tracking strips 12, the visual recognition of the surgical dressing during and after the operation is higher. However, the cost of welding will be higher due to the doubling of the material usage and the welding time.

Referring to fig. 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 extends along the edges of the absorbent pad to cover part or all of the edges of the absorbent pad 10.

The inventors have found that a cost effective method of welding the visual tracking strip 12 to the side of the nonwoven fabric absorbent pad 10 is: the visual tracking strip 12 is used for wrapping and covering the edge of the non-woven fabric absorbent pad 10 and welding the non-woven fabric absorbent pad 10 along the edge, namely, one part of the visual tracking strip 12 covers the upper surface of the edge of the absorbent pad 10, and the other part of the visual tracking strip is turned downwards to wrap the side surface of the absorbent pad 10 and then covers the lower surface of the edge of the absorbent pad 10.

It is understood that, in order to improve the visual effect, the visual trace strips 12 located on the upper surface or the lower surface of the edge of the absorbent pad 10 may extend to a certain extent toward the inner side of the absorbent pad 10, that is, the width of the visual trace strips 12 is increased, so that the visual trace strips 12 are more striking and have better visual effect.

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

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 may also be used to lift the surgical dressing during post-surgical counting. It would be advantageous if the handle could also be produced with visual tracking properties by the above-described techniques. In this embodiment, the visual tracking strip 12 is attached to the absorbent pad 10 and then extended such that a portion of the visual tracking strip 12 extends outside of the absorbent pad 10 and the portion of the visual tracking strip 12 extending outside of the absorbent pad 10 can be used as a retrieval handle 121 for the nonwoven absorbent pad 10. Since the retrieval handle 121 is made of a material having low absorbency for fluids and is printed in a color contrasting with blood, the absorbent pad is also easily identified and retrieved before and after the operation and after being saturated with blood, resulting in a greatly improved safety of the abdominal surgical towel during the operation.

By attaching the visual tracking strip 12 to the edge of and to the side surface of the absorbent pad 10, in addition to the retrieval handle 121 having the same visual tracking characteristics, the nonwoven surgical dressing of the present invention significantly enhances visual tracking and greatly reduces the risk of leaving the dressing in the patient after surgery. In addition to improving the safety of the surgical dressing, the visual tracking strip 12 may also be used as a color code for surgical dressings in another application. In some countries, surgical dressings need to have a color corresponding to surgery, and if an abdominal pad for abdominal surgery is required to be green, then green becomes the color code for abdominal surgery. Dyeing spunlaced nonwovens is very expensive and sometimes impossible to achieve. In order for the non-woven surgical dressing to meet the coloring requirements of these countries, the visual tracking strips 12 on the surgical dressing may be printed in different colors to meet the coloring requirements of surgical dressings in these countries.

In some embodiments of the present invention, the visual tracking strip 12 and the retrieval handle 121 are printed with a predetermined pattern comprising straight lines, wavy lines, stripes, any geometric shape, text or numbers, wherein the color of the predetermined pattern is significantly different from the color of the visual tracking strip 12 and the retrieval handle 121, preferably, the color of the predetermined pattern is contrasting to the color of the visual tracking strip 12 or the cloth of the retrieval handle 121 for easier identification.

In particular applications, it may be desirable to print a blue stripe on the white background of the hydrophobic cloth used for the visual tracking strip 12 or retrieval handle 121 to make it easily recognizable to the naked eye both before and after surgery. If it is desired to display some information on the visual tracking strip 12 or the retrieval handle 121, the blue stripes may be replaced by text, numbers or other graphics on a white background of hydrophobic cloth.

Preferably, these predetermined patterns are printed using fluorescent printing material, which, as discussed above, makes the visual tracking strip 12 more visually recognizable.

According to the embodiment of the invention, the non-woven fabric surgical dressing bag comprises a packaging piece and a plurality of non-woven fabric surgical dressings in the embodiment, wherein the plurality of non-woven fabric surgical dressings are stacked and hermetically packaged in the packaging piece.

The surgical dressing is used for absorbing blood and liquid during a surgical operation, the surgical dressing can be filled into a packaging piece which can be a packaging bag or a tray, and then the packaging piece is sealed and sterilized to form a non-woven fabric surgical dressing bag which is then applied to the surgical operation.

In a particular application, the visual tracking strips may be provided in different colors, and the colors of the visual tracking strips may be different from each other to represent different surgical dressings for different purposes in the operating room.

According to the non-woven fabric surgical dressing bag provided by the embodiment of the invention, the non-woven fabric surgical dressing is provided, and the visual tracking strip 12 is arranged on the water absorption pad 10, and the visual tracking strip 12 is made of hydrophobic cloth and has a color obviously different from that of blood, so that the visibility of the surgical dressing can be further improved, and the safety of the surgical dressing in surgical use can be further enhanced.

The visual tracking effect of the safety-enhanced nonwoven surgical dressing of the present invention is illustrated in the following examples 1 to 10 of the present invention.

Examples 1 to 5:

the enhanced visual tracking effect is demonstrated below with 5 examples. The non-woven fabric surgical dressing of the present invention with visual tracking strips 12 provides significantly enhanced tracking when compared to conventional cotton gauze surgical dressings.

Example 1 is a standard cotton woven gauze surgical dressing with two X-ray tracing lines of two colors. Examples 2-5 are different examples of the non-woven surgical dressing of the present invention with the fluorescent color of the visual tracking strip 12 and a conventional pale green color. Comparison of the various examples shows that after the surgical dressing is soaked by blood, the visibility of the non-woven fabric dressing of the fluorescent visual tracking strip 12 is the highest after operation, the visual tracking strip 12 with common color is arranged secondly, and the visual tracking effect of the double X-ray tracking line cotton woven gauze surgical dressing is the lowest finally.

Examples 6 to 10:

the following are 5 additional examples comparing the effect of enhanced visual tracking performance of non-woven surgical dressings of the present invention having various material combinations with conventional cotton gauze surgical dressings having fluorescent sutures. Example 6 is a conventional cotton gauze surgical dressing with fluorescent suture. Examples 7-10 are various examples of nonwoven surgical dressings with fluorescent colored visual tracking strips 12, with or without a retrieval handle 121. Comparison of the various examples shows that the nonwoven dressing with the visual tracking strips 12 and handles is best for enhanced visual tracking during and after surgery in the case of a dressing saturated with blood, followed by a nonwoven dressing with the visual tracking strips wrapped around the edges but without handles, followed by a nonwoven dressing with only two visual tracking strips 12 on both sides, followed by a nonwoven dressing with only one visual tracking strip 12 on one side, and finally a dressing with fluorescent threads sewn onto a cotton gauze pad.

In summary, the non-woven fabric surgical dressing with enhanced safety of the present invention comprises a non-woven fabric absorbent pad 10, at least one visual tracking strip 12, wherein the visual tracking strip 12 is made of hydrophobic cloth and printed with a color contrasting with the color of blood, and compared with the conventional cotton woven gauze surgical dressing, the non-woven fabric dressing with the visual tracking strip 12 has a visual tracking effect far superior to that of the cotton woven gauze surgical dressing during and after the operation. In addition, when the visual tracking strip 12 is ultrasonically welded to the edge of the nonwoven fabric absorbent pad 10 and extends a portion of the way from the absorbent pad 10, the portion of the extended visual tracking strip 12 forms a retrieval handle 121 for the nonwoven fabric surgical dressing. The preferred embodiment of the non-woven surgical dressing of the present invention for enhanced visual tracking performance includes a visual tracking strip 12 and a retrieval handle 121 having two colors: a white spun-bonded PP non-woven fabric, a colored predetermined pattern (non-white pattern) printed on the white PP fabric; wherein the printed predetermined pattern comprises straight lines, wavy lines, stripes, any geometric shape, text or numbers. The visual trace 12 may have a fluorescent color thereon. During the procedure, the visual tracking of the visual tracking strip 12 and the retrieval handle 121 is greatly enhanced, making it easier to find a blood-filled surgical dressing in the patient. The enhanced visibility of the visual tracking strip 12 and retrieval handle 121 after surgery makes counting of blood-soaked surgical dressings more reliable.

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 extra operator personnel. The high visual enhancement effect makes the non-woven fabric surgical dressing of the invention easy to visually track, it is easier to find the non-woven fabric dressing from the patient during the surgery, and the risk of the surgical dressing being left in the patient is minimized. After surgery, the visual tracking strip 12 and retrieval handle 121 make blood-filled surgical dressing counting easier and more accurate. In addition, because the non-woven fabric absorbent pad 10 and the cloth for manufacturing the visual tracking strip 12 have lower cost and the efficiency of the automatic ultrasonic welding process is very high, the non-woven fabric surgical dressing has higher cost than other conventional cotton woven gauze surgical dressings with improved safety, and is easier to widely popularize and use in global hospitals.

In addition, the ultrasonic welding process allows the components of the surgical dressing to be connected through automated manufacturing processes, such as the absorbent pad 10, the vision tracking strip 12 and the retrieval handle 121, thereby subversively changing the current cotton yarn dressing industry from sewing to sewing for the connection of the components of the gauze surgical dressing. The ultrasonic welding process is only suitable for the spunlace or needle-punched water-absorbent non-woven fabric material containing rayon fiber, wood pulp fiber, cotton fiber, polyester fiber, polypropylene fiber or bamboo fiber components, but not for the cotton woven gauze.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A non-woven fabric surgical dressing having enhanced safety, comprising:

2. The non-woven fabric surgical dressing with enhanced safety according to claim 1, wherein the spunlaced or needle-punched non-woven fabric is made of one or more of viscose, wood pulp, polyester, bamboo, polypropylene and cotton fibers;

3. The enhanced security non-woven fabric surgical dressing of claim 1, wherein the visual tracking strip is made of polypropylene or polyester fibers, and the visual tracking strip is attached to the absorbent pad by ultrasonic welding, heat pressing or sewing process.

4. A non-woven fabric surgical dressing with enhanced safety according to claim 1 or 3, wherein the visual tracking strip is made of a hydrophobic cloth with one or more fluorescent colors, at least one of which is significantly different from the color of blood.

5. A non-woven fabric surgical dressing with enhanced safety according to claim 1 or 3, wherein the visual tracking strip is made of a hydrophobic fabric, the hydrophobic fabric is free of X-ray developing substances, and the color on the hydrophobic fabric is free of fluorescence, at least one color on the hydrophobic fabric being significantly different from the color of blood.

6. A non-woven fabric surgical dressing with enhanced safety according to claim 1 or 3, wherein at least one visual tracking strip is attached to one of the upper and lower surfaces of the absorbent pad.

7. A non-woven fabric surgical dressing with enhanced safety according to claim 1 or 3, wherein at least one visual tracking strip is attached to both the upper and lower surfaces of the absorbent pad.

8. The non-woven fabric surgical dressing with enhanced safety according to claim 1 or 3, wherein the visual tracking strip is at least one, and at least one visual tracking strip is wrapped on any edge of the absorbent pad and extends along the edge of the absorbent pad so as to cover part or all of the edge of the absorbent pad.

9. A safety-enhanced nonwoven surgical dressing according to claim 1 or 3, wherein a portion of the visual tracking strip extends outside the absorbent pad to form a retrieval handle for retrieving the nonwoven surgical dressing from within the patient after surgery.

10. A non-woven fabric surgical dressing with enhanced safety according to claim 1 or 3, wherein the weight of the hydrophobic fabric of the visual tracking strip is in the range of 10-120 g/m, the width of the visual tracking strip is 1-50 cm, and the length of the visual tracking strip is 1-120 cm.

11. The enhanced security nonwoven surgical dressing of claim 1, wherein the absorbent pad absorbs more than 6 grams of water per gram and the visual tracking strip absorbs less than 3 grams of water per gram.

12. The non-woven surgical dressing with enhanced security of claim 9, wherein the visual tracking strip and the retrieval handle are printed with a predetermined pattern comprising straight lines, wavy lines, stripes, any geometric shape, text or numbers, wherein the color of the predetermined pattern is substantially different from the color of the visual tracking strip and the retrieval handle.

13. A safety-enhanced non-woven surgical dressing according to claim 1, wherein at least one X-ray tracing element is provided on said absorbent pad.

14. A non-woven fabric surgical dressing with enhanced safety according to claim 13, wherein the X-ray tracing member is in a linear or strip shape, the X-ray tracing thread is made of polyvinyl chloride or rubber containing at least 50% (by weight) barium sulfate, and the X-ray tracing member is attached to the absorbent pad by ultrasonic welding, heat pressing or sewing.

15. A non-woven fabric surgical dressing pack is characterized by comprising:

a package;

a plurality of nonwoven fabric surgical dressings as claimed in any of claims 1 to 14, which are stacked and hermetically packaged in the packaging member, and sterilized for use in surgery.

16. The non-woven surgical dressing package of claim 15, wherein the visual tracking strips are of different colors, the different colors of the visual tracking strips being used to represent different surgical dressings for different uses in an operating room.