Puncture needle sleeve, puncture needle head and puncture device

Abstract

A puncture needle sleeve, a puncture needle head and a puncture device relate to the technical field of medical instruments. The puncture needle sleeve is applied to a puncture needle head and comprises a sleeve body extending in the first direction, the sleeve body defines a containing space of the puncture needle head, and the sleeve body comprises a first channel, a second channel and a sleeve wall surrounding the periphery of the first channel and the periphery of the second channel, and the first channel and the second channel are communicated with each other; wherein the first passage and the second passage are used for enabling a part of the puncture needle head to extend out of the sleeve, the first passage is used for forming an activity space in which the puncture needle head moves along a second direction, and the second passage is used for forming an activity space in which the puncture needle head moves along a first direction; the first direction is perpendicular to the second direction.

Description

Technical Field

[0001] The present disclosure relates to the technical field of medical devices, and in particular to a puncture needle cover, a puncture needle and a puncture device. Background Art

[0002] Venous blood collection needles are widely used in clinical nursing and outpatient testing scenarios. The current venous blood collection needles require the needle cover to be removed before venous puncture. However, the needle cover has a small caliber. Generally, operators will not put the needle cover back on after completing blood collection, which poses a safety hazard. Utility Model Content

[0003] The present disclosure provides a puncture needle cover, which is applied to a puncture needle, and the puncture needle cover comprises: a sleeve extending along a first direction, the sleeve encloses and forms a housing space for the puncture needle, and the sleeve comprises: a first passage and a second passage communicating with each other, and a cylinder wall surrounding the first passage and the second passage;

[0004] Among them, the first passage and the second passage are used to allow a portion of the puncture needle to extend from the inside of the sleeve, the first passage is used to form a movable space for the puncture needle to move along the second direction, and the second passage is used to form a movable space for the puncture needle to move along the first direction, and the first direction and the second direction are perpendicular to each other.

[0005] In some embodiments, the first path connects a first node of the second path, the first node divides the second path into a first section and a second section, and the first section and the second section have different widths along the second direction.

[0006] In some embodiments, the length of the first segment along the first direction is greater than the length of the second segment along the first direction, and the width of the first segment along the second direction is greater than the width of the second segment along the second direction.

[0007] In some embodiments, the puncture needle cover further comprises:

[0008] The needle sleeve wing is connected to the surface of the barrel wall away from the accommodating space, and the needle sleeve wing is arranged opposite to the second passage. One end of the first passage away from the second passage and the needle sleeve wing are arranged along the first direction.

[0009] In some embodiments, the puncture needle cover further comprises:

[0010] A first adhesive layer is arranged on one side surface of the needle guard wing, and a first protective film is arranged on the first adhesive layer away from the needle guard wing, and the first protective film is used to be torn off before puncture.

[0011] The present disclosure provides a puncture needle, comprising: a needle tube and a needle handle connected to each other, and a needle wing connected to the needle handle;

[0012] Among them, the extension direction of the needle tube is the first direction, the needle wing includes a first side and a second side arranged oppositely along the first direction, a first groove is arranged on the first side, and a second groove is arranged on the second side, and the first groove and the second groove are arranged oppositely along the first direction.

[0013] In some embodiments, the first groove and the second groove are both disposed close to the needle handle.

[0014] In some embodiments, the puncture needle further comprises:

[0015] A second adhesive layer is arranged on one side surface of the needle wing, and a second protective film is arranged on the second adhesive layer away from the needle wing, and the second protective film is used to be torn off before puncture.

[0016] The present disclosure provides a puncture device, comprising:

[0017] The puncture needle cover as described in any of the above embodiments; and

[0018] The puncture needle as described in any of the above embodiments;

[0019] Wherein, the needle tube and the needle handle are arranged in the accommodating space formed by the sleeve, and the needle wing passes through the first passage or the second passage and extends from the inside of the sleeve. When the needle wing extends from the end of the second passage or the first passage, the barrel wall of the sleeve is embedded in the first groove and / or the second groove.

[0020] In some embodiments, the first path connects to a first node of the second path, and the first node divides the second path into a first section and a second section;

[0021] wherein the width of the first section along the second direction is greater than the width of the second section along the second direction, and smaller than the diameter of the needle handle; and

[0022] The width of the second section along the second direction is substantially equal to the thickness of the needle wing, so that the second section limits the movement of the needle wing in the second direction.

[0023] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present disclosure more obvious and easy to understand, the specific implementation methods of the present disclosure are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the proportions in the drawings are only for illustration and do not represent the actual proportions.

[0025] Figure 1 The overall structural diagram of the first puncture needle cover provided by the present disclosure is exemplarily shown;

[0026] Figure 2 The overall structural diagram of the second puncture needle cover provided by the present disclosure is exemplarily shown;

[0027] Figure 3 A partial structural schematic diagram of the puncture needle cover provided by the present disclosure is exemplarily shown;

[0028] Figure 4 The cross-sectional structure diagram of the needle sleeve wing provided by the present disclosure is exemplarily shown;

[0029] Figure 5 The overall structural diagram of the puncture needle provided by the present disclosure is exemplarily shown;

[0030] Figure 6 The partial structural schematic diagram of the puncture needle provided by the present disclosure is exemplarily shown;

[0031] Figure 7 The cross-sectional structure diagram of the needle wing provided by the present disclosure is exemplarily shown;

[0032] Figure 8 The schematic diagram of the structure of the puncture device provided by the present disclosure in the initial state is exemplarily shown;

[0033] Fig. 9 The schematic diagram of the structure of the puncture device provided by the present disclosure in the use state pushing the puncture needle into the accommodating space is exemplarily shown;

[0034] Fig.10 The schematic diagram of the structure of the puncture device provided by the present disclosure in which the puncture needle is retracted into the accommodating space after use is exemplarily shown. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0036] Venous blood collection needles are widely used in clinical care and outpatient testing scenarios. Traditional venous blood collection needles require the operator to remove the needle cover before performing venous puncture. However, due to the small caliber of the needle cover, it is difficult to remove and insert easily. On the one hand, a certain amount of force is required when removing it, and there is a certain risk of needlestick injuries. On the other hand, if the needle cover is to be re-put on after the puncture is completed, it will not only waste time and be inconvenient to operate, but also increase the risk of needlestick injuries. In addition, there are clinical cases where it is difficult to fix the position of the venous blood collection needle after puncture, and it is easy to slip out of the blood vessel or rotate in the blood vessel, causing discomfort or even pain.

[0037] like Figure 8 As shown, the puncture needle cover 10 provided by the present disclosure is used in conjunction with a puncture needle 20 .

[0038] Reference Figure 1 , Figure 1 The overall structure diagram of the first puncture needle cover provided by the present disclosure is shown as an example. Figure 1 As shown, the puncture needle sleeve 10 provided by the present disclosure includes: a sleeve 101 extending along a first direction F1, the sleeve 101 encloses a space S for accommodating the puncture needle 20, and the sleeve 101 includes: a first passage T1 and a second passage T2 that are interconnected, and a barrel wall surrounding the first passage T1 and the second passage T2. The barrel wall is used to fix the puncture needle 20.

[0039] like Figure 1 and Figure 2 As shown, the first passage T1 and the second passage T2 are used to allow a portion of the puncture needle 20 to extend from the interior of the sleeve 101, the first passage T1 is used to form a movable space for the puncture needle 20 to move along the second direction F2, and the second passage T2 is used to form a movable space for the puncture needle 20 to move along the first direction F1, and the first direction F1 and the second direction F2 are perpendicular to each other.

[0040] For example, Figures 1 to 3 , Figures 8 to 10 As shown, the sleeve 101 is a circular sleeve, and the accommodating space S is a cylindrical space.

[0041] For example, Figure 1 , Figure 2 and Figure 8 As shown, the first direction F1 is the axial direction of the sleeve 101 .

[0042] For example, Figure 1 , Figure 2 and Figure 8 As shown, the second direction F2 is the circumferential direction of the circular sleeve 101 .

[0043] For example, Figure 1 , Figure 2 and Figure 8 As shown, the first passage T1 extends along the second direction F2, and the second passage T2 extends along the first direction F1, and the first passage T1 and the second passage T2 form a T-shaped passage.

[0044] For example, Figure 1 , Figure 2 and Figure 8 As shown, the puncture needle 20 moves in the first passage T1 along the second direction F2, that is, moves along the circumferential direction of the circular sleeve 101, and moves in the second passage T2 along the first direction F1, that is, moves up and down along the axial direction of the sleeve 101.

[0045] In the embodiment of the present disclosure, the sleeve 101 is used to enclose a accommodating space S for the puncture needle 20, and the first passage T1 and the second passage T2 are provided so that the puncture needle 20 can be moved along the first direction F1 and the second direction F2, so that the puncture needle 20 can be moved out of the accommodating space S during puncture, and the puncture needle 20 can be moved back to the accommodating space S after the puncture is completed, thereby avoiding disassembly of the puncture needle 20 and reducing the risk of needlestick injuries.

[0046] For example, Figure 1 , Figure 2 and Figure 8 As shown, in the second direction F2, the first passage T1 is a non-closed passage, so that the cylinder walls located on the upper and lower sides of the first passage T1 are connected to each other to form an integrated structure.

[0047] For example, Figure 1 , Figure 2 and Figure 8 As shown, the two end points of the first passage T1 along the second direction F2 can be arranged opposite to each other along the radial direction of the circular sleeve. Figure 1 , Figure 2 and Figure 8 In the embodiment, one end point of the second passage T2 is located on the left side, and the other end point is located on the right side, and the puncture needle 20 rotates 180 degrees from the left end point to the right end point.

[0048] For example, Figure 1 , Figure 2 and Figure 8As shown, in the first direction F1 , the second passage T2 does not penetrate the sleeve 101 , so that the second passage T2 has a tube wall disposed on both upper and lower sides along the first direction F1 .

[0049] In some embodiments, Figures 1 to 3 As shown, the first passage T1 connects the first node J1 of the second passage T1, and the first node J1 divides the second passage T2 into a first section L1 and a second section L2. The first section L1 and the second section L2 have different widths along the second direction F1.

[0050] For example, Figure 1 and Figure 2 As shown, the vertical distance between the first node J1 and the upper port of the sleeve 101 is greater than the vertical distance between the first node J1 and the lower port of the sleeve 101. The upper port of the sleeve 101 here refers to the port close to the needle tip of the puncture needle 20, and the lower port of the sleeve 101 refers to the port far from the needle tip of the puncture needle 20.

[0051] In some embodiments, the length D1 of the first section L1 along the first direction F1 is greater than the length D1 of the second section L2 along the first direction F1 (eg, Figure 2 ), the width W1 of the first section L1 along the second direction F2 is greater than the width W2 of the second section L2 along the second direction F2 (as shown in Figure 3 shown).

[0052] The embodiment of the present disclosure sets the length D1 of the first section L1 in the first direction F1 to be longer, thereby ensuring that the puncture needle 20 can be completely placed in the accommodating space S in the initial state, and the puncture needle 20 can be moved out of the sleeve 101 to the maximum extent before puncture, so as to facilitate adjustment of the insertion angle and position of the puncture needle 20 during puncture.

[0053] In addition, by setting the width W1 of the first section L1 in the second direction F2 to be wider, the puncture needle 20 can be easily moved along the first direction F1 to avoid the needle getting stuck. By setting the width W2 of the second section L2 in the second direction F2 to be narrower, the puncture needle 20 retracted after puncture is completed can be easily fixed.

[0054] In some embodiments, Figure 2 As shown, the puncture needle cover 10 provided by the present disclosure further includes: a needle cover wing 102, which is connected to the surface of the barrel wall of the sleeve 101 away from the accommodating space S, and the needle cover wing 102 is arranged opposite to the second passage T2, and the first passage T1 is away from one end of the second passage T2 (such as Figure 2 The left end as shown) and the needle cover wing 102 are arranged along the first direction F1.

[0055] For example, Figure 2As shown, the needle sleeve wing 102 and the second passage T2 are arranged opposite to each other along the radial direction of the circular sleeve.

[0056] For example, Figure 2 As shown, the needle sleeve wing 102 and the second section L2 are both arranged near the same port of the sleeve 101, that is, the needle sleeve wing 102 and the second section L2 are both arranged near the lower port of the sleeve 101, and the lower port of the sleeve 101 refers to the port away from the needle tip of the puncture needle 20.

[0057] In the embodiment of the present disclosure, a needle sheath wing 102 is provided on the surface of the wall of the sleeve 101 away from the accommodating space S, so that the needle sheath wing 102 can be held to facilitate the movement of the puncture needle 20 in the preparation stage for puncture and blood collection.

[0058] In some embodiments, Figure 4 As shown, the puncture needle cover 10 provided by the present disclosure further includes: a first adhesive layer 103 disposed on one side surface of the needle cover wing 102, and a first protective film 104 disposed on the first adhesive layer 103 away from the needle cover wing 102, and the first protective film 104 is used to be torn off before puncture.

[0059] Exemplarily, the first protective film 104 is used to isolate the first adhesive layer 103 from the external environment.

[0060] Exemplarily, the first adhesive layer 103 is disposed on the side of the needle cover wing 102 close to the skin of the person whose blood is to be drawn during puncture and blood collection, so as to be adhered to the skin surface of the person whose blood is to be drawn, thereby facilitating the fixation of the puncture needle cover 10.

[0061] like Figure 5 As shown, the present disclosure provides a puncture needle 20 , comprising: a needle tube 201 and a needle handle 202 connected to each other, and a needle wing 203 connected to the needle handle 202 .

[0062] For example, Figure 8 As shown, in the initial state, the needle wing 203 is located at the end of the first passage T1 away from the second passage T2, and is located in the same plane as the needle cover wing 102, which is convenient for packaging and saves storage space. The initial state here refers to the factory state where the puncture needle 20 has not been moved.

[0063] For example, Fig. 9 and Fig.10 As shown, in the puncture and blood sampling state and the use-completed state, the needle wing 203 is located in the second passage T2, and the needle sleeve wing 102 is located on both sides of the sleeve 101 respectively.

[0064] In some embodiments, Figure 5As shown, the extension direction of the needle tube 201 is the first direction F1, and the needle wing 203 includes a first side B1 and a second side B2 relatively arranged along the first direction F1, a first groove 301 is arranged on the first side B1, and a second groove 302 is arranged on the second side B2, and the first groove 301 and the second groove 302 are relatively arranged along the first direction F1.

[0065] Exemplarily, as shown in FIG8 , the first side B1 is a side away from the needle guard wing 102 in the initial state, and the second side B2 is a side close to the needle guard wing 102 in the initial state.

[0066] For example, Fig. 9 As shown, the first groove 301 is used to get stuck in the wall of the sleeve 101 when the puncture needle 20 moves along the second passage T2 to the upper port of the sleeve 101, so as to fix the puncture needle 20 during puncture, prevent the puncture needle 20 from falling off and sliding into the accommodating space S again, ensure the stability of puncture blood collection, and prevent the needle tube 201 from rotating in the blood vessel or sliding out of the blood vessel during blood collection.

[0067] For example, Fig.10 As shown, the second groove 301 is used to get stuck in the wall of the sleeve 101 when the puncture needle 20 moves along the second passage T2 to the lower port of the sleeve 101, so as to fix the puncture needle 20 that is retracted after puncturing and blood sampling, prevent the used puncture needle 20 from sliding in the accommodating space S during recycling, and avoid the risk of needlestick injuries and other medical hazards.

[0068] In some embodiments, Figure 5 As shown, the first groove 301 and the second groove 302 are both arranged close to the needle handle 202. It should be noted that the first groove 301 and the second groove 302 are close to the needle handle 202 but not close to the needle handle 202, which is convenient for operation on the one hand, and ensures that there is a gap between the needle tube 201 and the inner wall of the sleeve 101 on the other hand, so as to avoid the needle tube 201 contacting the inner wall of the sleeve 101 and causing contamination.

[0069] In some embodiments, Figure 7 As shown, the puncture needle 20 provided by the present disclosure also includes: a second adhesive layer 401 arranged on one side surface of the needle wing 203, and a second protective film 402 arranged on the second adhesive layer 401 away from the needle wing 203, and the second protective film 402 is used to be torn off before puncture.

[0070] Exemplarily, the second protective film 402 is used to isolate the second adhesive layer 401 from the external environment.

[0071] Exemplarily, the second adhesive layer 401 is disposed on the side of the needle wing 203 close to the skin of the person whose blood is being drawn during puncture and blood collection, so as to be adhered to the skin surface of the person whose blood is being drawn, thereby facilitating the fixation of the puncture needle 20.

[0072] Illustratively, the second adhesive layer 401 on the surface of the needle wing 203 is used in combination with the first adhesive layer 103 on the surface of the needle cover wing 102 to fix the position of the needle tube 201 to prevent the needle tube 201 from rotating in the blood vessel or slipping out of the blood vessel during blood collection, causing discomfort or pain.

[0073] In some embodiments, the puncture needle 20 provided by the present disclosure further includes: a transparent hose 204, which is connected to an end of the needle handle 202 away from the needle tube 201 and is used to transport blood during puncture and blood collection.

[0074] like Figure 8 As shown, the present disclosure provides a puncture device 1000, comprising: a puncture needle cover 10 as described in any of the above embodiments; and a puncture needle head 20 as described in any of the above embodiments.

[0075] In some embodiments, Figure 8 As shown, the needle tube 201 and the needle handle 202 are arranged in the accommodating space S formed by the sleeve 101, and the needle wing 203 extends from the inside of the sleeve 101 through the first passage T1 or the second passage T2. When the needle wing 203 extends from the end of the second passage T2 or the first passage T1, the barrel wall of the sleeve 101 is embedded in the first groove 301 and / or the second groove 302.

[0076] For example, in the initial state or during the movement of the puncture needle 20 along the first passage T1, the barrel wall located above the first passage T1 is embedded in the first groove 301, and the barrel wall located below the first passage T1 is embedded in the second groove 302. After the puncture needle 20 moves upward to the upper end of the second passage T2, the barrel wall located above the second passage T2 is embedded in the first groove 301 to fix the puncture needle 20. After the puncture needle 20 moves downward to the lower end of the second passage T2, the barrel wall located below the second passage T2 is embedded in the second groove 302 to fix the puncture needle 20.

[0077] In some embodiments, Figure 1 , Figure 2 and Figure 8 As shown, the first path T1 is connected to the first node J1 of the second path T2, and the first node J1 divides the second path T2 into a first section L1 and a second section L2.

[0078] In some embodiments, the width W1 of the first section L1 along the second direction F2 is greater than the width W2 of the second section L2 along the second direction F2 (eg, Figure 3and the width W2 of the second section L2 along the second direction F2 is substantially equal to the thickness of the needle wing 203, so that the second section L2 limits the movement of the needle wing 203 in the second direction F2.

[0079] In the embodiment of the present disclosure, the width W1 of the first section L1 along the second direction F2 is set to be smaller than the diameter of the needle handle 202, thereby preventing the puncture needle 20 from slipping out of the sleeve 101 when moving in the second passage T2; and the movement of the needle wing 203 in the second direction F2 is limited by the second section L2, thereby further fixing the position of the puncture needle 20 after use, thereby avoiding the risk of needlestick injuries and other medical hazards.

[0080] Those skilled in the art can understand that the puncture device 1000 provided in the present disclosure has the advantages of the puncture needle cover 10 and the puncture needle head 20 described in any of the above embodiments.

[0081] like Fig. 9 and Fig.10 As shown, the present disclosure provides a puncture method, which is applied to the puncture device 1000 as described in any of the above embodiments. Before use, the needle wing 203 is located at one end of the first passage T1 away from the second passage T2. When using the puncture device 1000 for puncture and blood collection, the left hand holds the needle sleeve wing 102, the right hand holds the needle wing 203, and the needle wing 203 is rotated 180 degrees along the second direction F2 in the first passage T1, slides to the first node J1, and then slides in the direction of the first node J1 pointing to the first section L1, slides to the end of the first section L1, and uses the first groove 301 to clamp the wall of the sleeve 101. At this time, the needle tube 201 is completely exposed, and the needle insertion angle is not affected. Next, tear off the first protective film 104 on the needle cover wing 102 to expose the first adhesive layer 103, and tear off the second protective film 402 on the needle wing 203 to expose the second adhesive layer 401. After successful intravenous puncture, stick the first adhesive layer 103 and the second adhesive layer 401 to the skin surface of the person whose blood is being drawn. Press the hand-held wings on both sides with appropriate force with the left and right thumbs to fix the puncture needle cover 10 and the puncture needle 20, and then draw blood. After the collection is completed, hold the needle wing 203 with the right hand, and quickly pull the needle wing 203 down along the direction from the first section L1 to the second section L2 until the second groove 301 is stuck to the wall of the sleeve 101, and the puncture and blood collection are completed.

[0082] Those skilled in the art can understand that the puncture method provided by the present disclosure has the advantages of the puncture device 1000 described in any of the above embodiments.

[0083] In the present disclosure, “plurality” means two or more, and “at least one” means one or more, unless otherwise clearly and specifically defined.

[0084] In the present disclosure, the orientation or positional relationship indicated by the terms "upper" and "lower" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present disclosure 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 therefore cannot be understood as a limitation on the present disclosure.

[0085] As used herein, the terms "comprises," "includes," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, product, or device. In the absence of further limitations, an element defined by the phrase "includes a ..." does not exclude the presence of additional identical elements in the process, method, commodity, or device that includes the element.

[0086] References herein to "one embodiment," "some embodiments," "exemplary embodiments," "one or more embodiments," "example," "an example," "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. Schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0087] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0088] When describing some embodiments, the expressions "coupled" and "connected" may be used. For example, when describing some embodiments, the term "connected" may be used to indicate that two or more components are in direct physical or electrical contact with each other. As another example, when describing some embodiments, the term "coupled" may be used to indicate that two or more components are in direct physical or electrical contact. However, the term "coupled" or "communicatively coupled" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the contents of this document.

[0089] “At least one of A, B, and C” has the same meaning as “at least one of A, B, or C” and both include the following combinations of A, B, and C: A only, B only, C only, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C.

[0090] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0091] As used herein, the term "if" is optionally interpreted to mean "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined that" or "if [a stated condition or event] is detected" are optionally interpreted to mean "upon determining that" or "in response to determining that" or "upon detecting [a stated condition or event]" or "in response to detecting [a stated condition or event]," depending on the context.

[0092] The use of "for" or "configured to" herein is meant to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0093] The use of "based on" or "according to" herein is meant to be open and inclusive. A process, step, calculation or other action based on one or more of the conditions or values ​​may, in practice, be based on other conditions or exceed the values ​​described. A process, step, calculation or other action based on one or more of the conditions or values ​​may, in practice, be based on other conditions or exceed the values ​​described.

[0094] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of variation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0095] As used herein, "parallel", "perpendicular", "equal", and "flush" include the situations described and situations similar to the situations described, the range of which is within an acceptable deviation range, wherein the acceptable deviation range is as determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range for approximate parallelism may be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range for approximate perpendicularity may also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range for approximate equality may be, for example, that the difference between the two being equal is less than or equal to 5% of either one. "Flush" includes absolute flushness and approximate flushness, wherein the acceptable deviation range for approximate flushness may be, for example, that the distance between the two being flush is less than or equal to 5% of the size of either one.

[0096] It will be understood that when a layer or an element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present between the layer or element and the other layer or substrate.

[0097] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of layers and regions is exaggerated for clarity. Therefore, variations in shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances are conceivable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but include shape deviations due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shape of the regions of the device, and are not intended to limit the scope of the exemplary embodiments. Unless otherwise specified, the thickness of a film layer refers to the size of the film layer in the direction of its normal.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A puncture needle cover, characterized in that: Applied to a puncture needle, the puncture needle cover comprises: a sleeve extending along a first direction, the sleeve encloses and forms a housing space for the puncture needle, the sleeve comprises: a first passage and a second passage communicating with each other, and a cylinder wall surrounding the first passage and the second passage; Among them, the first passage and the second passage are used to allow a portion of the puncture needle to extend from the inside of the sleeve, the first passage is used to form a movable space for the puncture needle to move along the second direction, and the second passage is used to form a movable space for the puncture needle to move along the first direction, and the first direction and the second direction are perpendicular to each other.

2. The puncture needle cover according to claim 1, wherein: The first path is connected to a first node of the second path, and the first node divides the second path into a first section and a second section, and the first section and the second section have different widths along a second direction.

3. The puncture needle cover according to claim 2, wherein: The length of the first section along the first direction is greater than the length of the second section along the first direction, and the width of the first section along the second direction is greater than the width of the second section along the second direction.

4. The puncture needle cover according to any one of claims 1 to 3, wherein: The puncture needle cover also includes: The needle sleeve wing is connected to the surface of the barrel wall away from the accommodating space, and the needle sleeve wing is arranged opposite to the second passage. One end of the first passage away from the second passage and the needle sleeve wing are arranged along the first direction.

5. The puncture needle cover according to claim 4, wherein: The puncture needle cover also includes: A first adhesive layer is arranged on one side surface of the needle guard wing, and a first protective film is arranged on the first adhesive layer away from the needle guard wing, and the first protective film is used to be torn off before puncture.

6. A puncture needle, characterized in that: include: A needle tube and a needle handle connected to each other, and a needle wing connected to the needle handle; Among them, the extension direction of the needle tube is the first direction, the needle wing includes a first side and a second side arranged oppositely along the first direction, a first groove is arranged on the first side, and a second groove is arranged on the second side, and the first groove and the second groove are arranged oppositely along the first direction.

7. The puncture needle according to claim 6, wherein: The first groove and the second groove are both arranged close to the needle handle.

8. The puncture needle according to claim 6 or 7, wherein: The puncture needle also includes: A second adhesive layer is arranged on one side surface of the needle wing, and a second protective film is arranged on the second adhesive layer away from the needle wing, and the second protective film is used to be torn off before puncture.

9. A puncture device, characterized in that: include: The puncture needle cover according to any one of claims 1 to 5; as well as The puncture needle according to any one of claims 6 to 8; The needle tube and the needle handle are arranged in the accommodating space formed by the sleeve, and the needle wing extends from the inside of the sleeve through the first passage or the second passage. When the needle wing extends from the end of the second passage or the first passage, the barrel wall is embedded in the first groove and / or the second groove.

10. The puncture device according to claim 9, wherein: The first path is connected to a first node of the second path, and the first node divides the second path into a first section and a second section; wherein the width of the first section along the second direction is greater than the width of the second section along the second direction, and smaller than the diameter of the needle handle; and The width of the second section along the second direction is substantially equal to the thickness of the needle wing, so that the second section limits the movement of the needle wing in the second direction.

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