Puncture assembly and puncture needle sleeve suitable for hemodialysis

Abstract

The present invention discloses a puncture assembly and a puncture needle cover suitable for hemodialysis, which relates to the technical field of hemodialysis. The puncture needle cover suitable for hemodialysis comprises: a substrate, which comprises a horizontal portion and a vertical portion vertically distributed with the horizontal portion, the vertical portion is provided with a through slot for passing the needle body of the puncture needle; a first folding portion, which is arranged on one side of the horizontal portion, the first folding portion is used to turn over the horizontal portion and connect with the horizontal portion to cooperate with the handle portion of the clamping puncture needle; a second folding portion, which is arranged on the left half area above the vertical portion, the second folding portion comprises a protective groove corresponding to the through slot and a blood-absorbing cotton arranged at the end of the protective groove; a third folding portion, which is arranged on the right half area above the vertical portion, the third folding portion is used to turn over the second folding portion and connect with the second folding portion. The device allows the operator to seal the puncture needle with one hand after completing hemodialysis and pulling out the puncture needle, so as to avoid biological contamination and secondary injury.

Description

Technical Field

[0001] The present invention relates to the technical field of hemodialysis, and more specifically, to a puncture needle cover suitable for hemodialysis. In addition, the present invention also relates to a puncture assembly comprising the puncture needle cover suitable for hemodialysis. Background Art

[0002] In the related art, hemodialysis is the main treatment method to maintain the life of patients with renal failure. The usual process is to draw blood from the patient's body, purify the blood through a hemodialysis device, and then return it to the patient's body. During the hemodialysis process, two puncture needles are required. The puncture needle pierces the patient's skin, enters the blood vessel / fistula, draws blood from the blood vessel, and returns it to the patient's body after purification.

[0003] Because dialysis requires a large amount of blood flow, during the dialysis process, a large positive and negative pressure will be generated at the puncture needle site. If the needle is close to the edge of the blood vessel / fistula, the needle will be sucked onto the fistula, resulting in poor blood flow and making dialysis impossible. In this case, the nurse usually puts a cotton ball under the puncture needle to adjust the needle height. However, the cotton ball cannot effectively control the needle height, and it is easy for the cotton ball height to be too high or too low, so it has to be adjusted many times.

[0004] In addition, after dialysis is completed, the puncture needle needs to be removed from the patient's body. At this time, the nurse needs to hold the patient's puncture site with one hand (press to stop bleeding), and pull out the puncture needle with the other hand and place it in the sharps box. During this process, there is a risk of blood dripping from the puncture needle, causing biological contamination; at the same time, in some cases, due to operational errors, the sharps box is not around, and the puncture needle needs to be temporarily placed, which increases the risk of secondary injury caused by the puncture needle.

[0005] In summary, how to enable the operator to seal the puncture needle with one hand after completing hemodialysis and pulling out the puncture needle to avoid biological contamination and secondary injury is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a puncture needle cover suitable for hemodialysis, which allows the operator to seal the puncture needle with one hand after completing hemodialysis and pulling out the puncture needle, thereby avoiding biological contamination and secondary injury.

[0007] Another object of the present invention is to provide a puncture assembly comprising the above-mentioned puncture needle cover suitable for hemodialysis.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] A puncture needle cover suitable for hemodialysis, comprising:

[0010] A substrate, which is a medical nonwoven fabric, comprising a horizontal portion and a vertical portion perpendicular to the horizontal portion, wherein the vertical portion is provided with a through groove for passing a needle body of a puncture needle;

[0011] A first folding portion, which is disposed on one side of the horizontal portion, and is used to be turned over to the top of the horizontal portion and connected to the horizontal portion to cooperate with the handle portion of the puncture needle;

[0012] A second folding portion, which is arranged in the left half area above the vertical portion, and the second folding portion includes a protection groove distributed corresponding to the through groove and a blood-absorbing cotton disposed at the end of the protection groove;

[0013] The third folding portion is arranged in the right half area above the vertical portion, and the third folding portion is used to be turned over to the top of the second folding portion and connected to the second folding portion.

[0014] In one embodiment, the first folding portion includes a first medical adhesive adhered to one side above the horizontal portion and a first release film adhered to the first medical adhesive.

[0015] In one embodiment, a protrusion is vertically provided on one side of the horizontal portion away from the vertical portion, and a cushion block is provided under the protrusion to adjust the height of the puncture needle.

[0016] In one embodiment, the spacer comprises a plastic material.

[0017] In one embodiment, a first support plate is provided below a side of the horizontal portion where the first folding portion is not provided; and a pulling block is provided at a lower end of a side of the horizontal portion where the first folding portion is provided.

[0018] In one embodiment, the first support plate and the pulling block both comprise plastic material.

[0019] In one embodiment, the second folding portion includes a second supporting plate disposed above the vertical portion, and the second supporting plate is provided with the protecting groove.

[0020] In one embodiment, the third folding portion includes a third supporting plate disposed above the vertical portion, a second medical adhesive adhered to the third supporting plate, and a second release film adhered to the second medical adhesive.

[0021] In one embodiment, the second support plate, the third support plate and the protection groove all comprise plastic material.

[0022] A puncture assembly comprises a puncture needle and any one of the above-mentioned puncture needle sleeves suitable for hemodialysis.

[0023] When using the puncture needle cover suitable for hemodialysis provided by the present invention, first, the puncture needle can be used to perform a puncture operation on the patient. After the puncture operation is completed, the operator can place the first folding part below the handle of the puncture needle, and then turn the side of the horizontal part without the first folding part to the top of the first folding part to connect with the horizontal part to match the handle of the clamping puncture needle. At the same time, the needle body of the puncture needle can be placed in the protective groove. After that, the operator can fold the second folding part and the third folding part together along the horizontal part to observe the needle state of the puncture needle during normal dialysis. After the dialysis operation is completed, before pulling out the puncture needle, the operator can fold the second folding part and the third folding part together along the horizontal part in the opposite direction to reset. After pulling out the puncture needle, the operator can turn the third folding part to the top of the second folding part and connect it to the second folding part, so as to use the third folding part and the protective groove to seal the puncture needle. At the same time, the blood-absorbing cotton can absorb the blood on the needle tip of the puncture needle.

[0024] The device is suitable for use with puncture needles of any specifications, and is flexible and widely used. In addition, the device does not have a separate folding component, and uses medical non-woven fabric as the base material, which is convenient for operators to perform folding operations, and also helps to reduce production costs while increasing the tolerance for use. In addition, the device is suitable for operators to operate with one hand. It is a needle cover for a special puncture needle for hemodialysis, which can seal the puncture needle after the puncture needle is pulled out to avoid biological contamination and secondary damage.

[0025] In summary, the puncture needle cover suitable for hemodialysis provided by the present invention allows the operator to seal the puncture needle with one hand after completing hemodialysis and pulling out the puncture needle, thereby avoiding biological contamination and secondary injury.

[0026] In addition, the present invention also provides a puncture assembly including the above-mentioned puncture needle sleeve suitable for hemodialysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 This is a schematic structural diagram of a puncture needle cover suitable for hemodialysis provided by the present invention;

[0029] Figure 2 The present invention is an exploded side view of a puncture needle cover suitable for hemodialysis;

[0030] Figure 3 A perspective view of a puncture needle cover suitable for hemodialysis;

[0031] Figure 4 The figure is an exploded side view of a puncture needle cover suitable for hemodialysis and a schematic diagram of the first step of assembling the puncture needle;

[0032] Figure 5 The figure is an exploded side view of a puncture needle cover suitable for hemodialysis and a schematic diagram of the second step of assembling the puncture needle;

[0033] Figure 6 The figure is an exploded side view of a puncture needle cover suitable for hemodialysis and a schematic diagram of the third step of assembling the puncture needle;

[0034] Figure 7 The figure is an exploded side view of a puncture needle cover suitable for hemodialysis and a schematic diagram of the fourth step of assembling the puncture needle;

[0035] Figure 8 The figure is an exploded side view of a puncture needle cover suitable for hemodialysis and a schematic diagram of the fifth step of assembling the puncture needle;

[0036] Fig. 9 A schematic diagram of a medical non-woven fabric material for a puncture needle cover suitable for hemodialysis;

[0037] Fig.10 A schematic diagram of the adhesive and release film materials of a puncture needle cover suitable for hemodialysis;

[0038] Fig.11 Schematic diagram of the plastic material of the puncture needle cover suitable for hemodialysis.

[0039] Figure 1-Figure 11 middle:

[0040] 1 is a substrate, 2 is a first medical adhesive, 3 is a first release film, 4 is a pulling block, 5 is a cushion block, 6 is a first support plate, 7 is a protective groove, 8 is a blood-absorbing cotton, 9 is a second support plate, 10 is a third support plate, 11 is a second medical adhesive, 12 is a second release film, 13 is a horizontal portion, 14 is a vertical portion, 15 is a through groove, 16 is a protruding portion, 17 is a first folding portion, 18 is a second folding portion, and 19 is a third folding portion. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The core of the present invention is to provide a puncture needle cover suitable for hemodialysis, which allows the operator to seal the puncture needle with one hand after completing hemodialysis and pulling out the puncture needle, thereby avoiding biological contamination and secondary injury. Another core of the present invention is to provide a puncture assembly including the above-mentioned puncture needle cover suitable for hemodialysis.

[0043] Please refer to Figures 1 to 11 .

[0044] This specific embodiment provides a puncture needle cover suitable for hemodialysis, comprising:

[0045] The substrate 1 is a medical nonwoven fabric, and includes a horizontal portion 13 and a vertical portion 14 perpendicular to the horizontal portion 13, wherein the vertical portion 14 is provided with a through groove 15 for passing the needle body of the puncture needle;

[0046] A first folding portion 17, which is disposed on one side of the horizontal portion 13, and is used to be turned over to the horizontal portion 13 and connected to the horizontal portion 13 to cooperate with the handle portion of the puncture needle;

[0047] The second folding portion 18 is arranged in the left half area above the vertical portion 14, and the second folding portion 18 includes a protection groove 7 corresponding to the through groove 15 and a blood-absorbing cotton 8 arranged at the end of the protection groove 7;

[0048] The third folding portion 19 is disposed in the right half region above the vertical portion 14 . The third folding portion 19 is used to be turned over to the top of the second folding portion 18 and connected to the second folding portion 18 .

[0049] It should be noted that the blood-absorbing cotton 8 can be set to be a water-absorbing sponge, a water-absorbing non-woven fabric or a water-absorbing resin to ensure the blood-absorbing effect of the blood-absorbing cotton 8. This device is a needle cover for a hemodialysis puncture needle, which does not affect the normal hemodialysis operation of the nurse. After the fistula puncture of the puncture needle is completed, the device is installed on the puncture needle. After the hemodialysis is completed and the puncture needle is pulled out, the operator can seal the puncture needle with one hand to avoid biological contamination and secondary injury.

[0050] It should also be noted that after the dialysis is completed, compared with directly placing the puncture needle into the sharps box, the device can be operated with one hand to seal the puncture needle, which does not increase too many operation steps. Secondly, the device can absorb the blood on the needle to avoid the possibility of biological contamination. Moreover, the application places the device assembly timing at any time after the puncture is completed and before the dialysis is completed. Usually, the nurses are the busiest at the beginning and end of the hemodialysis. This combination time does not increase the nurses' concentrated workload.

[0051] In addition, it should be noted that the substrate 1 of the device is made of medical non-woven fabric to facilitate the folding operation by the operator, which also helps to reduce production costs and increase the tolerance for use. If cost is not a consideration, a separate rotating component can be set. For example, a hinge-like structure can be set at the position where folding is required to facilitate the operator to flip it.

[0052] In actual use, the shape, structure, size, material, position, etc. of the substrate 1, the first folding portion 17, the second folding portion 18 and the third folding portion 19 can be determined according to actual conditions and actual needs.

[0053] When using the puncture needle cover for hemodialysis provided by the present invention, first, the puncture needle can be used to perform a puncture operation on the patient. After the puncture operation is completed, the operator can place the first folding portion 17 under the handle portion of the puncture needle. Figure 4 Then, the side of the horizontal portion 13 without the first folding portion 17 is turned over to the first folding portion 17 to connect with the horizontal portion 13 to match the handle portion of the puncture needle. At the same time, the needle body of the puncture needle can be placed in the protective groove 7. The structure is as shown in FIG. Figure 5 Afterwards, the operator can fold the second folding portion 18 and the third folding portion 19 together along the horizontal portion 13 so as to observe the needle state of the puncture needle during normal dialysis. Figure 6 shown.

[0054] After the dialysis operation is completed and before the puncture needle is pulled out, the operator can fold the second folding portion 18 and the third folding portion 19 together along the horizontal portion 13 in the opposite direction to reset the structure. Figure 7 After the puncture needle is pulled out, the operator can turn the third folding part 19 over the second folding part 18 to connect with the second folding part 18, so as to use the third folding part 19 and the protection groove 7 to seal the puncture needle. At the same time, the blood-absorbing cotton 8 can absorb the blood on the puncture needle. The structure is as shown in FIG. Figure 8 shown.

[0055] The device is suitable for use with puncture needles of any specifications, and is flexible and widely used. In addition, the device does not have a separate folding component, and uses medical non-woven fabric as the substrate 1, which is convenient for operators to perform folding operations, and also helps to reduce production costs while increasing the tolerance for use. In addition, the device is suitable for operators to operate with one hand. It is a needle cover for a special puncture needle for hemodialysis, which can seal the puncture needle after the puncture needle is pulled out to avoid biological contamination and secondary damage.

[0056] In summary, the puncture needle cover suitable for hemodialysis provided by the present invention allows the operator to seal the puncture needle with one hand after completing hemodialysis and pulling out the puncture needle, thereby avoiding biological contamination and secondary injury.

[0057] In one embodiment, the first folding portion 17 includes a first medical adhesive 2 bonded to one side above the horizontal portion 13 and a first release film 3 bonded to the first medical adhesive 2. The first release film 3 can be made of a release film or a release paper. When the first folding portion 17 and the second folding portion 18 need to be connected, the operator can tear off the first release film 3, and then use the first medical adhesive 2 to bond the first folding portion 17 and the second folding portion 18.

[0058] In one embodiment, a protrusion 16 is vertically provided on one side of the horizontal portion 13 away from the vertical portion 14 , and a cushion block 5 is provided below the protrusion 16 to adjust the height of the puncture needle.

[0059] It should be noted that during the dialysis process, a large positive and negative pressure will be generated at the needle tip of the puncture needle. If the needle tip is close to the edge of the blood vessel / fistula, the needle tip will be sucked onto the fistula, resulting in poor blood flow and making it impossible for dialysis to proceed smoothly. In this case, the operator usually needs to raise the puncture needle to adjust the needle tip height. Therefore, when using this device, the operator can flip the pad 5 under the puncture needle to adjust the needle tip height of the puncture needle. Using the pad 5 to adjust the needle tip height is more accurate, and in the event of an emergency, the operator will not be in a hurry to find a cotton ball to raise the puncture needle.

[0060] In one embodiment, the cushion blocks 5 are all made of plastic material, that is, the cushion blocks 5 can be made of materials such as PE, PP, and PU.

[0061] After completing the puncture, the operator can peel off the first release film 3, and then place the first folded portion 17 under the puncture needle, and the first medical adhesive 2 of the first folded portion 17 is bonded to the puncture needle. After turning the side of the horizontal portion 13 without the first folded portion 17 to the top of the first folded portion 17, the exposed part of the first medical adhesive 2 can be bonded to the horizontal portion 13. During use, the operator can decide whether to place the pad 5 under the puncture needle according to needs to adjust the height of the needle.

[0062] In one embodiment, a first support plate 6 is provided below the side of the horizontal portion 13 where the first folding portion 17 is not provided; and a pulling block 4 is provided at the end below the side of the horizontal portion 13 where the first folding portion 17 is provided.

[0063] It should be noted that after the puncture operation is completed, the first release film 3 can be peeled off, and then the pulling block 4 is pulled to place the first folded portion 17 under the puncture needle so as to bond the first medical adhesive 2 to the puncture needle. Figure 4 Then, the operator can fold the first support plate 6 to the top of the first folding portion 17, and press the first support plate 6 and the pulling block 4, so as to use the exposed part of the first medical adhesive 2 to be tightly bonded with the horizontal portion 13, as shown in FIG. Figure 5 shown.

[0064] The edge of the first support plate 6 can be used as the folding position between the first folding portion 17 and the horizontal portion 13, and the pulling block 4 can prevent the substrate 1 from bending disorderly. In addition, the first support plate 6, the cushion block 5, the pulling block 4 and the medical non-woven fabric of the substrate 1 can be connected by medical adhesive.

[0065] In one embodiment, the first support plate 6 and the pulling block 4 are both made of plastic material. For example, the first support plate 6 and the pulling block 4 can be made of PE, PP, PU and other materials, so that the horizontal part 13 will not be folded disorderly when flipping, and the overall weight of the device can be light, which is convenient for operators to hold and use.

[0066] In one embodiment, the second folding portion 18 includes a second support plate 9 disposed above the vertical portion 14, and the second support plate 9 is provided with a protection groove 7. The second folding portion 18 and the third folding portion 19 are folded and connected to form a container for collecting puncture needles, and the container has a similar function to a sharps box.

[0067] In one embodiment, the third folding portion 19 includes a third support plate 10 disposed above the vertical portion 14 , a second medical adhesive 11 adhered to the third support plate 10 , and a second release film 12 adhered to the second medical adhesive 11 .

[0068] It should be noted that after the operator pulls out the puncture needle, the second release film 12 can be torn off, and then the third folding portion 19 can be folded over the second folding portion 18, and the second medical adhesive 11 can be pressed to bond the second folding portion 18 to seal the puncture needle. At the same time, the blood-absorbing cotton 8 can absorb the blood on the puncture needle tip.

[0069] In one embodiment, the second support plate 9, the third support plate 10 and the protection groove 7 all include plastic material parts. For example, the second support plate 9, the third support plate 10 and the protection groove 7 can be made of PE, PP, PU and other materials, so that the second support plate 9 and the third support plate 10 will not be folded disorderly when flipped, and the overall weight of the device can be light, which is convenient for operators to hold and use.

[0070] It should be noted that the first medical adhesive 2 and the second medical adhesive 11 of the device are longer than the medical adhesive, which is convenient for peeling, and the device can meet the needs of medical staff for one-handed operation. In addition, all the folding positions of the device are not designed with separate folding components, which can save costs. The plastic parts at the folding positions are not continuous, and the folding action is mainly achieved by the softness of the medical non-woven fabric. The use of each support plate is to ensure the overall operability of the device. If there is no support plate, it will be impossible to accurately position the needle sleeve and blood-absorbing cotton. Moreover, because of the use of non-woven fabric at the folding position, a good tolerance effect is provided, that is, the needle sleeve slightly deviates from the center position, and it will not affect the use effect of the needle sleeve.

[0071] In addition to the above-mentioned puncture needle cover suitable for hemodialysis, the present invention also provides a puncture assembly including the puncture needle cover suitable for hemodialysis disclosed in the above-mentioned embodiment. For the structures of other parts of the puncture assembly, please refer to the prior art and will not be described in detail herein.

[0072] It should be explained that the first folding portion 17 and the second folding portion 18 and the third folding portion 19, the first support plate 6 and the second support plate 9 and the third support plate 10, the first medical adhesive 2 and the second medical adhesive 11, the first release film 3 and the second release film 12 mentioned in the present invention, wherein the first, second and the third are only for distinguishing the different positions, and there is no order of precedence.

[0073] In addition, it should be noted that the orientations or positional relationships indicated by "horizontal", "vertical", etc. in the present invention are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description and facilitating understanding. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0074] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. Any combination of all embodiments provided by the present invention is within the protection scope of this invention and will not be described in detail here.

[0075] The puncture assembly provided by the present invention and the puncture needle cover suitable for hemodialysis are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A puncture needle cover suitable for hemodialysis, characterized in that: include: A substrate (1) which is a medical nonwoven fabric, the substrate (1) comprising a horizontal portion (13) and a vertical portion (14) perpendicular to the horizontal portion (13), the vertical portion (14) being provided with a through groove (15) for passing a needle body of a puncture needle; A first folding portion (17) is provided on one side of the horizontal portion (13), and the first folding portion (17) is used to be turned over to the top of the horizontal portion (13) and connected to the horizontal portion (13) to cooperate with the handle portion of the puncture needle; A second folding portion (18) is arranged in the left half area above the vertical portion (14), the second folding portion (18) comprising a protective groove (7) distributed corresponding to the through groove (15) and a blood-absorbing cotton (8) arranged at the end of the protective groove (7); The third folding portion (19) is arranged in the right half area above the vertical portion (14), and the third folding portion (19) is used to be turned over to the top of the second folding portion (18) and connected to the second folding portion (18).

2. The puncture needle cover suitable for hemodialysis according to claim 1, characterized in that: The first folding portion (17) comprises a first medical adhesive (2) adhered to one side above the horizontal portion (13) and a first release film (3) adhered to the first medical adhesive (2).

3. The puncture needle cover suitable for hemodialysis according to claim 2, characterized in that: A protrusion (16) is vertically provided on one side of the horizontal portion (13) away from the vertical portion (14), and a cushion block (5) is provided below the protrusion (16) to adjust the height of the puncture needle.

4. The puncture needle cover suitable for hemodialysis according to claim 3, characterized in that: The cushion block (5) comprises a plastic material piece.

5. The puncture needle cover suitable for hemodialysis according to any one of claims 1 to 4, characterized in that: A first supporting plate (6) is provided below the side of the horizontal portion (13) where the first folding portion (17) is not provided; and a pulling block (4) is provided at the end below the side of the horizontal portion (13) where the first folding portion (17) is provided.

6. The puncture needle cover suitable for hemodialysis according to claim 5, characterized in that: The first support plate (6) and the pulling block (4) both comprise plastic material parts.

7. The puncture needle cover suitable for hemodialysis according to any one of claims 1 to 4, characterized in that: The second folding portion (18) comprises a second supporting plate (9) arranged above the vertical portion (14), and the second supporting plate (9) is provided with the protective groove (7).

8. The puncture needle cover suitable for hemodialysis according to claim 7, characterized in that: The third folding portion (19) comprises a third supporting plate (10) arranged above the vertical portion (14), a second medical adhesive (11) adhered to the third supporting plate (10), and a second release film (12) adhered to the second medical adhesive (11).

9. The puncture needle cover suitable for hemodialysis according to claim 8, characterized in that: The second support plate (9), the third support plate (10) and the protection groove (7) all comprise plastic material parts.

10. A puncture assembly, characterized in that: The invention comprises a puncture needle and a puncture needle cover suitable for hemodialysis as described in any one of claims 1 to 9.

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