Skin traction patch for unsmooth transfusion

Abstract

The utility model discloses a skin traction plaster for unsmooth transfusion, which comprises a fingerstall, a tooth fastener, a traction belt and an adhesive plaster, the fingerstall is suitable for being sleeved on a finger of a patient, and the tooth fastener is arranged on the fingerstall; one end of the traction belt is arranged on the tooth fastener in a penetrating manner, can slide relative to the tooth fastener, and is selectively clamped and fixed at a required position; the adhesive sticker is arranged at the other end of the traction belt, and the adhesive sticker is suitable for being attached to a puncture area on the body surface of a patient so as to pull the skin in the puncture area through the traction belt. According to the skin traction paste device, the traction effect on the skin can be achieved, infusion is smoother, the device is directly worn on the finger when used, use is convenient and easy, the whole infusion process can be maintained, the effect is obvious, and extremely high clinical practicability is achieved. In addition, the problem of re-puncturing can be reduced, the device is more friendly to patients, and medical resources can be saved.

Description

Technical Field

[0001] The utility model relates to a medical device, in particular to a skin traction patch for unsmooth infusion. Background Art

[0002] During medical care, infusion therapy is a common clinical operation. Although infusion seems simple, there are still some thorny problems, and unsmooth infusion is a typical challenge.

[0003] The main reasons for unsmooth infusion are often related to factors such as blood vessel bending and skin folds. Especially for indwelling needle infusion, since the indwelling needle needs to be pasted on the body surface with adhesive tape, it is very easy to cause skin folds around it, thus blocking the infusion path. At this time, the common clinical practice is to hold the indwelling needle by hand or pull the skin, trying to restore smooth infusion. However, manual skin traction is inconvenient to operate and cannot be maintained for a long time. If the problem of unsmooth infusion cannot be solved, medical staff have to re-puncture, which not only increases the patient's pain but also wastes medical resources. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems in the related art to some extent. For this purpose, the purpose of the utility model is to provide a skin traction patch for unsmooth infusion.

[0005] To achieve the above object, according to an embodiment of the utility model, the skin traction patch for unsmooth infusion includes:

[0006] A finger cot adapted to be worn on a patient's finger;

[0007] A tooth fastener provided on the finger cot;

[0008] A traction belt, one end of which is passed through the tooth fastener and can slide relative to the tooth fastener and is selectively locked and fixed at a desired position;

[0009] An adhesive patch provided at the other end of the traction belt, and the adhesive patch is adapted to be attached to the puncture area on the patient's body surface to pull the skin of the puncture area through the traction belt.

[0010] According to the skin traction patch for unsmooth infusion provided by the embodiments of the present utility model, a finger sleeve can be worn on a finger, and an adhesive patch is pasted on the body surface of the puncture area. By sliding the traction belt, the traction belt is tightened, and then the adhesive patch is pulled by the traction belt. Since the adhesive patch is pasted on the skin, in this way, the traction effect on the skin can be achieved, helping the infusion to be smoother. This device is directly worn on the finger during use, is convenient and simple to use, and can maintain the whole process of infusion, with obvious effects and extremely high clinical practicability. In addition, it can reduce the problem of re-puncturing, is more user-friendly to patients, and can also save medical resources.

[0011] In addition, the skin traction patch for unsmooth infusion according to the above embodiments of the present utility model may further have the following additional technical features:

[0012] According to an embodiment of the present utility model, the traction belt includes:

[0013] A main belt body;

[0014] An elastic ring, the elastic ring is connected to one end of the main belt body, and the peripheral surface of the elastic ring is adapted to contact the patient's body surface;

[0015] A toothed belt, the toothed belt is connected to the other end of the main belt body, and the toothed belt is threaded through the toothed fastener and is selectively engaged with the toothed fastener;

[0016] Wherein, the adhesive patch is located on the main belt body, and when the adhesive patch is pasted on the patient's body surface, the elastic ring presses on the patient's body surface and forms an upward elastic tension force, so that the adhesive patch is pulled upward.

[0017] According to an embodiment of the present utility model, the elastic ring is C-shaped, the elastic ring is located below the main belt body, one end of the elastic ring is connected to one end of the main belt body, and the other end of the elastic ring is close to but not connected to the lower surface of the main belt body.

[0018] According to an embodiment of the present utility model, one end of the main belt body close to the elastic ring has a blocking piece formed by upward bending. There is a gap groove between the blocking piece and the main belt body. The adhesive patch is horizontally placed in the gap groove, and the adhesive surface of the adhesive patch faces downward.

[0019] According to an embodiment of the present utility model, the finger sleeve is an elastic rubber ring, and a connecting platform protruding radially outward is arranged on the outer peripheral wall of the elastic rubber ring. The toothed fastener is fixed on the connecting platform.

[0020] According to an embodiment of the present utility model, a through hole is provided on the connecting platform. The toothed fastener includes:

[0021] A channel block, which is adapted to the through hole and is disposed in the through hole. The channel block has a channel extending along the through hole, and the channel is used for the pulling belt to pass through;

[0022] A stop edge, which is disposed at one end of the channel block and stops against one side surface of the connecting platform;

[0023] A stop block, which is disposed at the other end of the channel block and stops against the other side surface of the connecting platform. The channel penetrates through the stop edge and the stop block;

[0024] A tooth belt and the channel block are provided with a tooth-locking structure for selectively locking and fixing the tooth belt at a desired position.

[0025] According to an embodiment of the present invention, a plurality of first tooth portions are provided on the bottom surface of the tooth belt, and the plurality of first tooth portions are arranged at intervals along the length direction of the tooth belt;

[0026] The tooth-locking structure includes a second tooth portion and an elastic member. The second tooth portion is disposed on the bottom wall of the channel and is opposite to the first tooth portion up and down. The elastic member is disposed on the stop block and at least partially extends into the channel and elastically abuts against the tooth belt to enable the first tooth portion to mesh with the second tooth portion.

[0027] According to an embodiment of the present invention, the height dimension of the channel is greater than the thickness of the tooth belt, so that when the tooth belt is pulled upward by a user, the first tooth portion is separated from the second tooth portion and the elastic member is compressed.

[0028] According to an embodiment of the present invention, the height dimension of the channel gradually increases from the stop edge to one end of the stop block.

[0029] According to an embodiment of the present invention, the elastic member is a ball plunger screw, and the ball end of the ball plunger screw extends out from the top wall of the channel and elastically abuts against the tooth belt.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0031] 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 required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0032] Figure 1 It is a schematic structural diagram of the skin traction patch for unsmooth infusion in the embodiment of the present utility model from one perspective;

[0033] Figure 2 It is a schematic structural diagram of the skin traction patch for unsmooth infusion in the embodiment of the present utility model from another perspective;

[0034] Figure 3 It is an exploded view of the skin traction patch for unsmooth infusion in the embodiment of the present utility model;

[0035] Figure 4 It is a partial cross-sectional view of the skin traction patch for unsmooth infusion in the embodiment of the present utility model;

[0036] Figure 5 It is an exploded view of the tooth fastener in the skin traction patch for unsmooth infusion in the embodiment of the present utility model.

[0037] Reference numerals:

[0038] 10, finger sleeve;

[0039] 101, connecting platform;

[0040] H101, through hole;

[0041] 20, tooth fastener;

[0042] 201, channel block;

[0043] 202, retaining edge;

[0044] 203, stop block;

[0045] H20, channel;

[0046] H21, threaded hole;

[0047] 2031, second tooth part;

[0048] 204, elastic member;

[0049] 30, traction belt;

[0050] 301, main belt body;

[0051] 302, elastic ring;

[0052] 303, toothed belt;

[0053] 3031, first tooth part;

[0054] 304, blocking piece;

[0055] H30, clearance groove;

[0056] 40, adhesive patch.

[0057] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0058] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0059] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0060] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0061] In the present utility model, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed" and other terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0062] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0063] The skin traction patch for unsmooth infusion according to an embodiment of the present utility model will be described in detail below with reference to the accompanying drawings.

[0064] Refer to Figures 1 to 5 As shown, the skin traction patch for unsmooth infusion according to an embodiment of the present utility model includes a finger sleeve 10, a tooth fastener 20, a traction belt 30, and an adhesive patch 40.

[0065] Specifically, the finger sleeve 10 is adapted to be put on the finger of a patient. The finger sleeve 10 is made of an elastic material, and the inner surface is smooth to avoid irritating the finger skin, and has a certain tightness to adapt to different finger sizes.

[0066] The tooth fastener 20 is provided on the finger sleeve 10. The tooth fastener 20 is usually made of a plastic material having a certain elasticity and hardness, such as nylon material, etc. The tooth fastener 20 is used to cooperate with the traction belt 30 to achieve selective locking and fixing of the traction belt 30.

[0067] One end of the traction belt 30 is passed through the tooth fastener 20 and can slide relative to the tooth fastener 20 and be selectively locked and fixed at a desired position. That is to say, by sliding the traction belt 30 relative to the tooth fastener 20, the effective length of the traction belt 30 is adjusted, and the change in the effective length can change the pulling force of the traction belt 30 on the adhesive patch 40.

[0068] The adhesive patch 40 is provided at the other end of the traction belt 30, and the adhesive patch 40 is adapted to be attached to the puncture area on the body surface of the patient to pull the skin of the puncture area through the traction belt 30. When the traction belt 30 slides away from the human body, the effective length of the traction belt 30 is shortened, and the pulling force of the traction belt 30 on the skin increases. When the traction belt 30 slides towards the human body, the effective length of the traction belt 30 increases, and the pulling force of the traction belt 30 on the skin decreases or is eliminated.

[0069] In use, first put the finger cot 10 on the patient's finger, for example, on the index finger or middle finger of the patient, and then paste the adhesive patch 40 on the puncture area of the patient's body surface. Then, press the tooth fastener 20 with a finger and pull the free end of the pulling belt 30 away from the body, so that the pulling belt 30 slides along the tooth fastener 20 and is moderately tightened.

[0070] When it is pulled to the appropriate position, release the pulling belt 30. Under the locking and fixing effect of the tooth fastener 20 and the pulling belt 30, the pulling belt 30 is maintained in a moderately tightened state and the current effective length. At this time, the pulling belt 30 exerts a continuous pulling force on the skin of the puncture area, making the infusion smoother. After the infusion is completed, just tear off the adhesive patch 40, and the pulling belt 30 will automatically relax.

[0071] According to the skin traction patch for unsmooth infusion provided by the embodiments of the present invention, the finger cot 10 can be worn on the finger, the adhesive patch 40 can be pasted on the body surface of the puncture area, and the pulling belt 30 is tightened by sliding the pulling belt 30. Then, the pulling belt 30 is used to pull the adhesive patch 40, and the adhesive patch 40 is pasted on the skin. In this way, the skin can be pulled, helping the infusion to be smoother. The device is directly worn on the finger during use, which is convenient and simple, and can maintain the whole process of infusion, with obvious effects and high clinical practicability. In addition, it can reduce the problem of re-puncturing, is more friendly to patients, and can also save medical resources.

[0072] Refer to Figures 1 to 3 As shown, in some embodiments of the present invention, the pulling belt 30 includes a main belt body 301, an elastic ring 302 and a toothed belt 303. The main belt body 301 is a strip-shaped member with a certain width, and a plastic material with a certain ductility and tensile strength can be used, such as nylon material.

[0073] The elastic ring 302 is connected to one end of the main belt body 301, and the circumferential surface of the elastic ring 302 is adapted to contact the patient's body surface. The elastic ring 302 is usually made of the same material as the main belt body 301. The elastic ring 302 can be a completely closed ring or an incomplete open ring.

[0074] The toothed belt 303 is connected to the other end of the main belt body 301, and the toothed belt 303 is threaded through the tooth fastener 20 and selectively engages with the tooth fastener 20. That is to say, the toothed belt 303 can slide and adjust on the tooth fastener 20 along the length direction of the main belt body 301 and can be selectively locked when needed.

[0075] The adhesive patch 40 is located on the main belt body 301. When the adhesive patch 40 is pasted on the patient's body surface, the elastic ring 302 presses on the patient's body surface and forms an upward elastic tension force, so that the adhesive patch 40 is pulled up.

[0076] When the device is in use, the elastic ring 302 is oriented downward to contact the puncture area on the patient's body surface, and then the adhesive patch 40 is pasted on the puncture area on the patient's body surface. Next, press the toothed fastener 20 with a finger and pull the free end of the traction belt 30 away from the human body, so that the traction belt 30 slides along the toothed fastener 20 and is moderately tightened.

[0077] On the one hand, under the pulling force provided by the traction belt 30, the skin can be pulled backward. On the other hand, the elastic ring 302 has an upward elastic tension force, so that the skin is pulled upward. The combined action of the two forces comprehensively pulls the skin surface in a large area around the puncture point, effectively overcoming the wrinkling and relaxation of the skin, thereby ensuring the smoothness of the infusion passage.

[0078] Refer to Figure 2 As shown, in an embodiment of the present invention, the elastic ring 302 is C-shaped, the elastic ring 302 is located below the main belt body 301, one end of the elastic ring 302 is connected to one end of the main belt body 301, and the other end of the elastic ring 302 is close to but not connected to the lower surface of the main belt body 301. That is, the other end of the elastic ring 302 is separated from the main belt body 301 and close to the lower surface of the main belt body 301.

[0079] With the above design of the elastic ring 302, when the free end of the traction belt 30 is pulled, the main belt body 301 drives the elastic ring 302 to curl instead of translating, thereby ensuring that the position of the elastic ring 302 on the body surface remains basically unchanged and can always exert an upward elastic tension force. In addition, for this C-shaped elastic ring 302, the opening of the elastic ring 302 faces the main belt body 301, and one end of it is connected to the main belt body 301, so that the main belt body 301 can maintain better stability, and thus also ensures the stability and reliability during skin traction.

[0080] Refer to Figure 1 and Figure 3 As shown, in an embodiment of the present invention, one end of the main belt body 301 close to the elastic ring 302 has a blocking piece 304 formed by upward bending. There is a gap groove H30 between the blocking piece 304 and the main belt body 301. The adhesive patch 40 is horizontally placed in the gap groove H30, and the adhesive surface of the adhesive patch 40 faces downward.

[0081] When the device is in use, the front adhesive surface of the adhesive patch 40 is attached to the puncture area on the patient's body surface with the adhesive surface facing downward. The peripheral surface of the elastic ring 302 is attached to and presses on the body surface area of the adhesive patch 40. When a finger pulls the toothed belt 303 to tighten the main belt body 301, the relative displacement between the main belt body 301 and the blocking piece 304 will pull the adhesive patch 40 backward by the gap groove H30, thereby achieving the effect of pulling the skin backward and upward.

[0082] In this embodiment, the provision of the blocking piece 304 and the gap groove H30 makes it difficult for the adhesive sticker 40 to fall off the pulling belt 30. Moreover, when the pulling belt 30 is tightened, the blocking piece 304 generates a backward pulling force on the adhesive sticker 40, ensuring that when the pulling belt 30 is tightened, the adhesive sticker 40 can be synchronously pulled, thus ensuring the reliability of skin traction.

[0083] Refer to Figures 1 to 4 As shown, in an embodiment of the present utility model, the finger sleeve 10 is an elastic rubber ring, and the outer peripheral wall of the elastic rubber ring has a connecting platform 101 formed by protruding radially outward. The tooth fastener 20 is fixed on the connecting platform 101. Using the radially outward protruding connecting platform 101 to install the tooth fastener 20 not only ensures that the wearing of the finger sleeve 10 is not affected, but also enables the tooth fastener 20 to be fixed more conveniently and reliably, ensuring the reliable and stable function of its locking and fixing of the pulling belt 30.

[0084] Refer to Figures 4 to 5 As shown, in an embodiment of the present utility model, a through hole H101 is provided on the connecting platform 101. The tooth fastener 20 includes a channel block 201, a retaining edge 202, and a retaining block 203. The channel block 201 is adapted to the through hole H101 and is inserted into the through hole H101. The channel block 201 has a channel H20 extending along the through hole H101 for the pulling belt 30 to pass through.

[0085] The retaining edge 202 is provided at one end of the channel block 201 and abuts against one side surface of the connecting platform 101. The retaining edge 202 is an annular structure, and its radial dimension is larger than the radial dimension of the channel block 201, so that it can abut against one side surface of the connecting platform 101.

[0086] The retaining block 203 is provided at the other end of the channel block 201 and abuts against the other side surface of the connecting platform 101. The radial dimension of the retaining block 203 is also larger than the radial dimension of the channel block 201, enabling it to abut against the other side surface of the channel block 201. The channel H20 penetrates through the retaining edge 202 and the retaining block 203, that is, the channel H20 penetrates through the entire tooth fastener 20, so that the tooth belt 303 can extend into the channel H20 from one end of the retaining edge 202 and then extend out from one end of the retaining block 203. A tooth-locking structure is provided between the tooth belt 303 and the channel block 201 for selectively locking and fixing the tooth belt 303 at the desired position. After the finger manipulates and pulls the tooth belt 303 to the desired position, the locking structure between the tooth belt 303 and the channel block 201 can lock and fix the tooth belt 303 in the channel H20 through the biting action.

[0087] The toothed fastener 20 adopting the above structure can be stably and reliably embedded and fixed on the connecting platform 101, is convenient for assembly and disassembly, has a compact and efficient overall structure, and is reliable and stable in use. In addition, the clamping structure ensures that the toothed belt 303 can be reliably clamped and fixed.

[0088] Referring Figure 2 and Figure 4 As shown, in an embodiment of the present invention, a plurality of first tooth portions 3031 are provided on the bottom surface of the toothed belt 303, and the plurality of first tooth portions 3031 are arranged at intervals along the length direction of the toothed belt 303.

[0089] The tooth clamping structure includes a second tooth portion 2031 and an elastic member 204. The second tooth portion 2031 is provided on the bottom wall of the channel H20 and is vertically opposite to the first tooth portion 3031. The elastic member 204 is provided on the stopper 203 and at least partially extends into the channel H20 and elastically abuts against the toothed belt 303 to make the first tooth portion 3031 engage with the second tooth portion 2031.

[0090] Since the lower end of the elastic member 204 continuously presses against the upper side of the toothed belt 303, the first tooth portion 3031 on the bottom surface of the toothed belt 303 will be forced to bite with the second tooth portion 2031. In this way, reliable clamping and fixing are achieved. When the toothed belt 303 needs to be adjusted, the free end of the toothed belt 303 can be pinched and pulled slightly backward and upward. At this time, the upper surface of the toothed belt 303 generates an upward pressure on the lower end of the elastic member 204, causing the elastic member 204 to shorten, and the first tooth portion 3031 on the lower surface of the toothed belt 303 can be separated from the second tooth portion 2031 on the bottom wall of the channel H20. Then, the toothed belt 303 can be pulled to slide relative to the toothed fastener 20, thereby adjusting the position of the toothed belt 303 and realizing the tightening or loosening of the pulling belt 30.

[0091] In the above structure, the addition of the elastic member 204 ensures the reliability and stability of the clamping and fixing effect of the toothed fastener 20 on the toothed belt 303. At the same time, it is very convenient when adjustment is needed.

[0092] Preferably, the height dimension of the channel H20 is greater than the thickness of the toothed belt 303, so that when the toothed belt 303 is pulled upward by the user, the first tooth portion 3031 is separated from the second tooth portion 2031, and the elastic member 204 is compressed. The design of making the height dimension of the channel H20 greater than the thickness of the tooth ensures that when the toothed belt 303 is adjusted, it is easier to pull the toothed belt 303 to separate the first tooth portion 3031 from the second tooth portion 2031, improving the convenience of adjusting the toothed belt 303.

[0093] More advantageously, the height dimension of the channel H20 gradually increases from the retaining edge 202 to one end of the stopper 203. In this way, not only is the adjustment of the toothed belt 303 facilitated, but also the toothed belt 303 is more stable when engaging with the toothed fastener 20, reducing adverse effects such as shaking.

[0094] Referring to Figures 4 to 5 As shown, in some embodiments of the present invention, the elastic member 204 is a ball screw. The ball end of the ball screw extends from the top wall of the channel H20 and elastically abuts against the toothed belt 303. During installation, only a threaded hole H21 needs to be provided at the top of the stopper 203, and the ball screw can be screwed into the threaded hole H21, which is convenient for assembly. At the same time, the depth of the ball screw screwed in can be adjusted to adjust the pressure on the toothed belt 303, thereby facilitating the tightness of the cooperation between the first tooth portion 3031 and the second tooth portion 2031.

[0095] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0096] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A skin traction patch for poor infusion, characterized in that: include: A finger sleeve adapted to be worn on a patient's finger; A tooth fastener, the tooth fastener being arranged on the finger sleeve; A pulling belt, one end of which is passed through the toothed fastener and can slide relative to the toothed fastener and be selectively locked and fixed at a desired position; An adhesive patch is arranged at the other end of the pulling belt, and the adhesive patch is suitable for being attached to the puncture area on the patient's body surface so as to pull the skin of the puncture area through the pulling belt.

2. The skin pulling patch for poor infusion according to claim 1, characterized in that: The pulling belt comprises: Main band body; An elastic ring, the elastic ring is connected to one end of the main belt body, and the circumference of the elastic ring is suitable for contacting the patient's body surface; A toothed belt, the toothed belt is connected to the other end of the main belt body, and the toothed belt is passed through the toothed fastener to selectively engage with the toothed fastener; Wherein, the adhesive patch is located on the main belt body, and when the adhesive patch is attached to the patient's body surface, the elastic ring presses on the patient's body surface and forms an upward elastic tensioning force, so that the adhesive patch is pulled upward.

3. The skin pulling patch for poor infusion according to claim 2, characterized in that: The elastic ring is C-shaped and is located below the main belt body. One end of the elastic ring is connected to one end of the main belt body, and the other end of the elastic ring is close to but not connected to the lower surface of the main belt body.

4. The skin pulling patch for poor infusion according to claim 2, characterized in that: One end of the main belt body close to the elastic ring has a blocking piece bent upward, a gap groove is provided between the blocking piece and the main belt body, the adhesive sticker is horizontally placed in the gap groove, and the adhesive surface of the adhesive sticker faces downward.

5. The skin pulling patch for poor infusion according to claim 2, characterized in that: The finger sleeve is an elastic rubber ring, and the outer peripheral wall of the elastic rubber ring is arranged to protrude radially outward to form a connecting platform, and the tooth fastener is fixed on the connecting platform.

6. The skin pulling patch for poor infusion according to claim 5, characterized in that: The connecting platform is provided with a through hole, and the tooth fastener comprises: A channel block, the channel block is adapted to the through hole and is inserted into the through hole, the channel block has a channel extending along the through hole, and the channel is used for the pulling belt to pass through; A stop edge, the stop edge being arranged at one end of the channel block and being stopped at a side surface of the connecting platform; a stopper, the stopper being arranged at the other end of the channel block and being stopped at the other side of the connecting platform, the channel passing through the stopper edge and the stopper; A latching structure is provided between the toothed belt and the channel block for selectively latching and fixing the toothed belt at a desired position.

7. The skin pulling patch for poor infusion according to claim 6, characterized in that: A plurality of first tooth portions are provided on the bottom surface of the toothed belt, and the plurality of first tooth portions are arranged at intervals along the length direction of the toothed belt; The latching tooth structure includes a second tooth portion and an elastic member, wherein the second tooth portion is arranged on the bottom wall of the channel and is opposite to the first tooth portion in upper and lower directions, and the elastic member is arranged on the stop block and at least partially extends into the channel and elastically abuts against the toothed belt to enable the first tooth portion to mesh with the second tooth portion.

8. The skin pulling patch for poor infusion according to claim 7, characterized in that: The height dimension of the channel is greater than the thickness of the toothed belt, so that when the toothed belt is pulled upward by a user, the first tooth portion is separated from the second tooth portion, and the elastic member is compressed.

9. The skin pulling patch for poor infusion according to claim 8, characterized in that: The height dimension of the channel increases gradually from the stop edge to one end of the stop block.

10. The skin pulling patch for poor infusion according to claim 7, characterized in that: The elastic member is a ball screw, and the ball end of the ball screw extends from the top wall of the channel and elastically abuts against the toothed belt.

Images