An infusion port needle positioning aid

Abstract

The present invention provides an infusion port needle positioning aid, which belongs to the technical field of infusion ports. The infusion port needle positioning aid includes a base, a rotating mechanism, a supporting mechanism and a positioning mechanism. An adhesive strip is installed at the bottom end of the base, and an adsorbent is fixed at the center of the bottom end of the base. The rotating mechanism includes a rotating part and a threaded fastener. The rotating part is rotatably installed at the top of the base. The threaded fastener is screwed to the base, and one side of the threaded fastener is attached to the rotating part. The supporting mechanism includes a support plate and a telescopic rod. The support plate is rotatably installed at the upper end of the rotating part. The present invention can limit the movement range of the non-destructive needle through the positioning block, which can make the movement of the non-destructive needle more stable, reduce the possibility of shaking of the non-destructive needle, reduce the possibility of deviation of the non-destructive needle, improve the success rate of non-destructive needle puncture, and reduce the pain of patients.

Description

Technical Field

[0001] The present invention relates to the field of infusion ports, and in particular to an infusion port needle positioning aid. Background Art

[0002] An infusion port is a closed infusion device that is completely implanted in the human body, consisting of a catheter portion with the tip located in the superior vena cava and an injection seat implanted subcutaneously.

[0003] An infusion port is an infusion device implanted in the human body. When using the infusion port for infusion, a non-destructive needle must be placed. During the placement process, it is easy to puncture the needle in the wrong direction, and repeated punctures cause pain to the patient. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides an infusion port needle positioning aid, which aims to improve the problem that the traditional infusion port is prone to deviation during needle insertion.

[0005] The present invention is achieved in that:

[0006] The present invention provides an infusion port needle positioning aid, comprising a base, a rotating mechanism, a supporting mechanism and a positioning mechanism.

[0007] The cam is secured to the bottom of the base and is secured to a central position on the bottom of the base with a plurality of locking members, the plurality of locking members being secured to the bottom of the base with a plurality of locking members being secured to the central position on the bottom of the base with a plurality of locking members being secured to the central position on the bottom of the base with a plurality of locking members being secured to the central position on the bottom of the base with a plurality of

[0008] In one embodiment of the present invention, the adsorbent is an annular rubber ring, and an annular groove is provided at the lower end of the adsorbent, the cross-section of the annular groove is trapezoidal, a deformation groove is provided on the inner top surface of the adsorbent, and the deformation groove is connected to the annular groove.

[0009] In one embodiment of the present invention, the rotating member includes a base block and a turntable, the base block is cylindrical, the base is an annular seat, and an annular protrusion is fixed inside the base, the base block is rotatably installed in the annular protrusion, the turntable is fixed on the surface of the base block, and the turntable is connected to the support plate and the telescopic rod.

[0010] In one embodiment of the present invention, the telescopic rod includes an externally threaded tube and an internally threaded rod, one end of the externally threaded tube is rotatably connected to the turntable via a bearing, the internally threaded rod is screwed into the externally threaded tube, and one end of the internally threaded rod is hinged to the support plate via a hinge seat.

[0011] In one embodiment of the present invention, a limiting ring is fastened to the surface of the base block, the limiting ring and the turntable are respectively located on both sides of the annular protrusion, and the outer ring diameter of the limiting ring and the diameter of the turntable are not less than the outer ring diameter of the annular protrusion.

[0012] In one embodiment of the present invention, balls are rollingly mounted on the upper end surface and the lower end surface of the base block, and any one of the balls is attached to one of the turntable and the limit ring.

[0013] In one embodiment of the present invention, the threaded fastener comprises a threaded column and a threaded block, the threaded column is rotatably mounted on the base surface, the threaded block is screwed to the threaded column, and one side of the threaded block is in close contact with the rotating member.

[0014] In one embodiment of the present invention, a hand-held block is key-connected to the surface of the threaded column, the hand-held block is configured to be disc-shaped, and anti-slip grooves are engraved at intervals on the edge of the hand-held block. A guide rod is fixed to the surface of the base, one end of the guide rod passes through the threaded block, and the guide rod and the threaded block are loosely matched.

[0015] In one embodiment of the present invention, a connecting plate is provided at the rotational connection between the support plate and the rotating member, a notch is opened on one side of the support plate, a round rod is fixed in the notch, the connecting plate is sleeved on the surface of the round rod, and the other side of the connecting plate is fixedly connected to the rotating member.

[0016] In one embodiment of the present invention, a track groove is provided on the surface of the support plate, a slide bar is fixed in the track groove, the slide bar is fixedly connected to the support bar, and the track groove is arranged to match the moving track of the support bar.

[0017] The beneficial effects of the present invention are as follows: the present invention obtains an infusion port needle positioning aid through the above-mentioned design. When in use, the base can be installed on the patient's skin surface to adjust the length of the telescopic rod. By adjusting the length of the telescopic part, the positioning block can be tilted, and by rotating the rotating part, the positioning block can be rotated, and the position of the positioning block can be changed. The positioning block can be adjusted to the moving trajectory of the non-damage needle when it is inserted, and the positioning hole formed by the two positioning blocks can be overlapped with the moving trajectory of the non-damage needle when it is inserted. The non-damage needle is passed through the positioning hole and then inserted into the patient's skin. The positioning block can limit the moving range of the non-damage needle, reduce the possibility of the non-damage needle being pierced off course, improve the success rate of non-damage needle puncture, and reduce the patient's pain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the infusion port needle positioning aid provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the connection structure between the base and the rotating mechanism provided in an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of an adsorption member provided in an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the annular convex structure provided in an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of the telescopic rod structure provided in an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the connection structure between the positioning mechanism and the support plate provided in an embodiment of the present invention.

[0025] In the figure: 100-base; 110-adhesive strip; 120-adsorbent; 121-annular groove; 122-deformation groove; 130-annular protrusion; 200-rotating mechanism; 210-rotating member; 211-base block; 212-turntable; 213-limiting ring; 214-ball; 220-threaded fastener; 221-threaded column; 222-threaded block; 223-handheld block; 224- Guide rod; 300-support mechanism; 310-support plate; 311-notch; 312-round rod; 313-connecting plate; 320-telescopic rod; 321-external threaded tube; 322-internal threaded rod; 330-track groove; 340-sliding rod; 400-positioning mechanism; 410-axial rod; 420-positioning block; 430-spring; 440-support rod; 450-arc groove; 460-positioning hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] Example

[0034] See also Figure 1-6 The present invention provides an infusion port needle positioning aid, including a base 100, a rotating mechanism 200, a supporting mechanism 300 and a positioning mechanism 400.

[0035] Among them, the rotating mechanism 200 is arranged on the surface of the base 100, the supporting mechanism 300 is used to connect the rotating mechanism 200 and the positioning mechanism 400 together, and the positioning mechanism 400 is used to position the movement of the non-destructive needle, reduce the possibility of the non-destructive needle being pierced off course, and improve the success rate of puncture. The rotating mechanism 200 rotates the supporting mechanism 300, and then the positioning mechanism 400 can be adjusted, so that the positioning mechanism 400 can be moved in position according to the puncture site of the non-destructive needle, so that the positioning mechanism 400 can be used in conjunction with the non-destructive needle.

[0036] See also Figure 1-4An adhesive strip 110 is installed at the bottom of the base 100, and an adsorbent 120 is fixed at the center of the bottom of the base 100. In a specific implementation, the base 100 can be installed by adhering the adhesive strip 110 to the skin surface of the patient. In addition, the adsorbent 120 can be adsorbed on the skin surface of the patient, which is convenient for the installation of the base 100.

[0037] In this embodiment, the adsorbent 120 is an annular rubber ring, and an annular groove 121 is provided at the lower end of the adsorbent 120. The cross-section of the annular groove 121 is trapezoidal, and a deformation groove 122 is provided on the inner top surface of the adsorbent 120, and the deformation groove 122 is connected to the annular groove 121, so that the adsorbent 120 contacts the patient's skin and deforms, and the annular groove 121 opens under force to wrap the skin. At the same time, the air in the annular groove 121 is squeezed out, and a negative pressure is formed inside, so that the skin is sucked into the deformation groove 122, thereby fixing the adsorbent 120.

[0038] See also Figure 1 , Figure 2 and Figure 4 The rotating mechanism 200 includes a rotating member 210 and a threaded fastener 220. The rotating member 210 is rotatably installed on the top of the base 100. The threaded fastener 220 is screwed to the base 100, and one side of the threaded fastener 220 is close to the rotating member 210. In a specific implementation, the rotating member 210 is rotated to drive the support plate 310 and the telescopic rod 320 to rotate. The threaded fastener 220 is rotated to squeeze the rotating member 210, so that the rotating member 210 can be fixed.

[0039] In this embodiment, the rotating member 210 includes a base block 211 and a turntable 212. The base block 211 is cylindrical, the base 100 is an annular seat, and an annular protrusion 130 is fixed inside the base 100. The base block 211 is rotatably installed in the annular protrusion 130. The turntable 212 is fixed on the surface of the base block 211. The turntable 212 is connected to the support plate 310 and the telescopic rod 320. The rotation of the base block 211 can drive the turntable 212, the support plate 310 and the telescopic rod 320 to rotate.

[0040] Furthermore, a limit ring 213 is tightly sleeved on the surface of the base block 211, and the limit ring 213 and the turntable 212 are respectively located on both sides of the annular protrusion 130, and the outer ring diameter of the limit ring 213 and the diameter of the turntable 212 are not less than the outer ring diameter of the annular protrusion 130. Through the cooperation of the limit ring 213 and the turntable 212, the movement range of the base block 211 can be limited, and the possibility of the base block 211 inferring the base 100 can be reduced; it can be understood that the upper end face and the lower end face of the base block 211 are both rollingly installed with balls 214, and any one of the balls 214 is attached to one of the turntable 212 and the limit ring 213. The addition of the ball 214 can make the rotation of the turntable 212 and the limit ring 213 smoother, which is beneficial to the rotation of the rotating member 210.

[0041] The threaded fastener 220 includes a threaded column 221 and a threaded block 222. The threaded column 221 is rotatably mounted on the surface of the base 100. The threaded block 222 is screwed to the threaded column 221, and one side of the threaded block 222 is in close contact with the rotating member 210. The threaded column 221 is rotated to move the threaded block 222 along the threaded column 221. The threaded block 222 can move to the surface of the rotating member 210. The threaded block 222 can squeeze the rotating member 210 to increase the resistance of the rotating member 210 when rotating, thereby fixing the rotating member 210.

[0042] Furthermore, a hand-held block 223 is key-connected to the surface of the threaded column 221. The hand-held block 223 is set in a disc shape, and anti-slip grooves are engraved at intervals on the edge of the hand-held block 223. The operator can rotate the threaded column 221 by rotating the hand-held block 223, which is convenient for the operator to operate the threaded column 221. A guide rod 224 is fixed to the surface of the base 100, and one end of the guide rod 224 passes through the threaded block 222, and the guide rod 224 and the threaded block 222 are clearance-matched. The addition of the guide rod 224 can limit the moving direction of the threaded block 222, making the movement of the threaded block 222 more stable.

[0043] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 The supporting mechanism 300 includes a supporting plate 310 and a telescopic rod 320. The supporting plate 310 is rotatably mounted on the upper end of the rotating member 210. One end of the telescopic rod 320 is rotatably mounted on the surface of the rotating member 210, and the other end of the telescopic rod 320 is hinged to the supporting plate 310. In specific implementation, the length of the telescopic rod 320 is adjusted, and the telescopic rod 320 can support the supporting plate 310, so that the supporting plate 310 can rotate, thereby driving the positioning block 420 to rotate, and the positioning block 420 can be tilted, which is conducive to the non-damaged needle passing through the two positioning blocks 420 at an angle.

[0044] In this embodiment, a connecting plate 313 is provided at the rotation connection between the support plate 310 and the rotating member 210. A notch 311 is provided on one side of the support plate 310. A round rod 312 is fixed in the notch 311. The connecting plate 313 is sleeved on the surface of the round rod 312, and the other side of the connecting plate 313 is fixedly connected to the rotating member 210. The rotation of the round rod 312 can drive the support plate 310 to rotate, so that the rotation connection between the support plate 310 and the rotating member 210 is more stable. The other side of the connecting plate 313 can be fixed to the surface of the rotating disk 212 in the rotating member 210.

[0045] The telescopic rod 320 includes an externally threaded tube 321 and an internally threaded rod 322. One end of the externally threaded tube 321 is rotatably connected to the turntable 212 via a bearing, the internally threaded rod 322 is screwed into the externally threaded tube 321, and one end of the internally threaded rod 322 is hinged to the support plate 310 via a hinge seat. By rotating the externally threaded tube 321, the internally threaded rod 322 can be moved along the externally threaded tube 321, thereby realizing the adjustment of the length of the telescopic rod 320.

[0046] See also Figure 1 and Figure 6 The positioning mechanism 400 includes a shaft 410, a positioning block 420 and a spring 430. The shaft 410 is fixed on the surface of the support plate 310, and two support rods 440 are rotatably installed on the surface of the shaft 410. Two positioning blocks 420 are provided, and the two positioning blocks 420 are respectively fixed at the ends of the two support rods 440. The spring 430 is installed between the two support rods 440. The surfaces of the two positioning blocks 420 are both provided with arc grooves 450, and the two arc grooves 450 are engaged to form a positioning hole 460. In the specific implementation, the non-damaging needle can be inserted from between the two positioning blocks 420. The needle passes through the positioning hole 460 and then pierces the patient's skin. The positioning block 420 can limit the movement range of the non-destructive needle, reduce the possibility of the non-destructive needle being pierced off course, improve the success rate of non-destructive needle puncture, and reduce the patient's pain. It should be noted that the spring 430 and the positioning block 420 are respectively located on both sides of the shaft 410. The spring 430 can support the two support rods 440, so that the two support rods 440 rotate relative to each other around the shaft 410, thereby making the two positioning blocks 420 move relative to each other, and the two positioning blocks 420 can be snapped together.

[0047] In this embodiment, a track groove 330 is opened on the surface of the support plate 310, and a slide rod 340 is fixed in the track groove 330. The slide rod 340 is fixedly connected to the support rod 440, and the track groove 330 is matched with the moving track of the support rod 440. By limiting the moving range of the slide rod 340 through the track groove 330, the movement of the slide rod 340 can be made more stable, and thus the rotation of the support rod 440 can be made more stable.

[0048] Specifically, the working principle of the infusion port needle positioning aid is as follows: before the needle is inserted, the base 100 can be installed by adhering the adhesive strip 110 to the patient's skin surface. In addition, the adsorbent 120 can be adsorbed on the patient's skin surface to make the installation of the base 100 more stable. The length of the telescopic rod 320 is adjusted, and the telescopic rod 320 can support the support plate 310, so that the support plate 310 rotates, thereby driving the positioning block 420 to rotate, and the positioning block 420 can be tilted, and the rotating member 210 can be rotated to drive the telescopic rod 320 to rotate. 20. The support plate 310 and the positioning block 420 are rotated to change the position of the positioning block 420, so that the positioning block 420 can be adjusted to the moving trajectory of the non-damage needle during insertion, so that the positioning hole 460 formed by the two positioning blocks 420 coincides with the moving trajectory of the non-damage needle during insertion, and the non-damage needle is passed through the positioning hole 460 and then inserted into the patient's skin. The positioning block 420 can limit the moving range of the non-damage needle, reduce the possibility of the non-damage needle being pierced off course, improve the success rate of non-damage needle puncture, and reduce the patient's pain.

[0049] It should be noted that the specific model and specifications of the spring 430 need to be selected and determined based on the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An infusion port needle positioning aid, characterized in that: include A base (100), wherein an adhesive strip (110) is installed at the bottom end of the base (100), and an adsorption member (120) is fixed at the center of the bottom end of the base (100); A rotating mechanism (200), the rotating mechanism (200) comprising a rotating member (210) and a threaded fastener (220), the rotating member (210) being rotatably mounted on the top of the base (100), the threaded fastener (220) being screwed to the base (100), and one side of the threaded fastener (220) being in contact with the rotating member (210); A support mechanism (300), the support mechanism (300) comprising a support plate (310) and a telescopic rod (320), the support plate (310) being rotatably mounted on an upper end portion of the rotating member (210), one end of the telescopic rod (320) being rotatably mounted on a surface of the rotating member (210), and the other end of the telescopic rod (320) being hinged to the support plate (310); A positioning mechanism (400), the positioning mechanism (400) comprising a shaft (410), a positioning block (420) and a spring (430), the shaft (410) being fixed to the surface of the support plate (310), and two support rods (440) being rotatably mounted on the surface of the shaft (410), two positioning blocks (420) being provided, and the two positioning blocks (420) being respectively fixed to the ends of the two support rods (440), the spring (430) being mounted between the two support rods (440), and arc grooves (450) being provided on the surfaces of the two positioning blocks (420), and the two arc grooves (450) being engaged to form a positioning hole (460); The adsorption member (120) is an annular rubber ring, and an annular groove (121) is provided at the lower end of the adsorption member (120), the cross section of the annular groove (121) is trapezoidal, a deformation groove (122) is provided on the inner top surface of the adsorption member (120), and the deformation groove (122) is communicated with the annular groove (121), the rotating member (210) comprises a base block (211) and a rotating disk (212), the base block (211) is cylindrical, the base (100) is an annular seat, and an annular protrusion (130) is fixed inside the base (100), the base block (211) is rotatably mounted in the annular protrusion (130), the rotating disk (212) is fixed on the surface of the base block (211), and the rotating disk (212) is connected to the support plate (310) and the telescopic rod (320).

2. The infusion port needle positioning aid according to claim 1, characterized in that: The telescopic rod (320) comprises an externally threaded tube (321) and an internally threaded rod (322); one end of the externally threaded tube (321) is rotatably connected to the rotating disk (212) via a bearing; the internally threaded rod (322) is threaded into the externally threaded tube (321); and one end of the internally threaded rod (322) is hinged to the support plate (310) via a hinge seat.

3. The infusion port needle positioning aid according to claim 1, characterized in that: A limiting ring (213) is tightly sleeved on the surface of the base block (211); the limiting ring (213) and the rotating disk (212) are respectively located on two sides of the annular protrusion (130); and the outer ring diameter of the limiting ring (213) and the diameter of the rotating disk (212) are not less than the outer ring diameter of the annular protrusion (130).

4. The infusion port needle positioning aid according to claim 3, characterized in that: Balls (214) are rollingly mounted on both the upper end surface and the lower end surface of the base block (211), and any one of the balls (214) is attached to one of the rotating disk (212) and the limiting ring (213).

5. The infusion port needle positioning aid according to claim 1, characterized in that: The threaded fastener (220) comprises a threaded column (221) and a threaded block (222); the threaded column (221) is rotatably mounted on the surface of the base (100); the threaded block (222) is threadedly connected to the threaded column (221), and one side of the threaded block (222) is in close contact with the rotating member (210).

6. The infusion port needle positioning aid according to claim 5, characterized in that: The surface of the threaded column (221) is key-connected with a hand-held block (223), the hand-held block (223) is arranged in a disc shape, and the edge of the hand-held block (223) is engraved with anti-slip grooves at intervals, and a guide rod (224) is fixed on the surface of the base (100), one end of the guide rod (224) passes through the threaded block (222), and the guide rod (224) and the threaded block (222) are clearance-matched.

7. The infusion port needle positioning aid according to claim 1, characterized in that: A connecting plate (313) is provided at the rotational connection between the support plate (310) and the rotating member (210); a notch (311) is provided on one side of the support plate (310); a round rod (312) is fixed in the notch (311); the connecting plate (313) is sleeved on the surface of the round rod (312); and the other side of the connecting plate (313) is fixedly connected to the rotating member (210).

8. The infusion port needle positioning aid according to claim 1, characterized in that: A track groove (330) is provided on the surface of the support plate (310), a slide bar (340) is fixed in the track groove (330), the slide bar (340) is fixedly connected to the support bar (440), and the track groove (330) is arranged to match the moving track of the support bar (440).

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