CN111956913A - Infusion port contact pin location assistor - Google Patents

Abstract

The invention provides an infusion port contact pin positioning assistor and belongs to the technical field of infusion ports. The infusion port contact pin positioning assistor comprises a base, a rotating mechanism, a supporting mechanism and a positioning mechanism. The base bottom is installed and is pasted the strip, just base bottom center is fixed with adsorbs the piece, rotary mechanism includes rotating member and threaded fastener, the rotating member rotate install in the base top, threaded fastener spiro union in the base, just one side of threaded fastener is pasting the rotating member, supporting mechanism includes extension board and telescopic link, the extension board rotate install in the rotating member upper end. The invention can limit the moving range of the atraumatic needle through the positioning block, can ensure that the atraumatic needle moves more stably, reduces the possibility of shaking of the atraumatic needle, reduces the possibility of deflection of the atraumatic needle, improves the success rate of puncture of the atraumatic needle and reduces the pain of patients.

Description

A kind of infusion port needle positioning aid

technical field

The invention relates to the field of infusion ports, in particular to an infusion port needle positioning aid.

Background technique

The infusion port is a closed infusion device completely implanted in the human body, including the catheter part with the tip located in the superior vena cava and the injection seat embedded under the skin.

The infusion port is the most infusion device implanted in the human body. When using the infusion port for infusion, a non-invasive needle should be placed. During the placement process, it is easy to puncture and puncture repeatedly, which brings pain to the patient.

SUMMARY OF THE INVENTION

In order to make up for the above deficiencies, the present invention provides an infusion port needle positioning aid aimed at improving the problem that the traditional infusion port is prone to misalignment during needle insertion.

The present invention is realized in this way:

The invention provides an infusion port needle positioning aid, comprising 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 adsorption piece is fixed at the center of the bottom end of the base. The threaded fastener is screwed on the base, and one side of the threaded fastener is attached to the rotating member, the support mechanism includes a support plate and a telescopic rod, and the support plate is rotatably installed on the rotating member. On the upper end of the rotating member, one end of the telescopic rod is rotatably mounted on the surface of the rotating member, and the other end of the telescopic rod is hinged with the support plate, and the positioning mechanism includes a shaft rod, a positioning block and a spring, so The shaft rod is fixed on the surface of the support plate, and the surface of the shaft rod is rotatably installed with two support rods, the positioning blocks are provided with two, and the two positioning blocks are respectively fixed on the two support rods. At the end of the rod, the spring is installed between the two support rods, the surfaces of the two positioning blocks are both provided with arc-shaped grooves, and the two arc-shaped grooves are engaged to form positioning holes.

In an embodiment of the present invention, the adsorption member is an annular rubber ring, and a lower end of the adsorption member is provided with an annular groove, the cross-section of the annular groove is trapezoidal, and the inner top surface of the adsorption member A deformation groove is opened, and the deformation groove communicates with the annular groove.

In an 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 projection is fixed inside the base, the The base block is rotatably installed in the annular projection, the turntable is fixed on the surface of the base block, and the turntable is connected with the support plate and the telescopic rod.

In an embodiment of the present invention, the telescopic rod includes an externally threaded pipe and an internally threaded rod, one end of the externally threaded pipe is rotatably connected to the turntable through a bearing, and the internally threaded rod is threadedly connected to the external threaded rod. inside the threaded pipe, and one end of the inner threaded rod is hinged with the support plate through a hinge seat.

In an embodiment of the present invention, a limit ring is fastened and sleeved on the surface of the base block, the limit ring and the turntable are respectively located on both sides of the annular projection, and the limit ring The diameter of the outer ring and the diameter of the turntable are not smaller than the diameter of the outer ring of the annular projection.

In an embodiment of the present invention, rolling balls are installed on both 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.

In an embodiment of the present invention, the threaded fastener includes a threaded post and a threaded block, the threaded post is rotatably mounted on the surface of the base, the threaded block is threaded on the threaded post, and the One side of the threaded block is close to the rotating member.

In an embodiment of the present invention, a hand-held block is keyed on the surface of the threaded column, the hand-held block is arranged in a disc shape, and the edges of the hand-held block are engraved with anti-skid patterns at intervals, and the surface of the base is A guide rod is fixed, one end of the guide rod penetrates the threaded block, and the guide rod is in clearance fit with the threaded block.

In an embodiment of the present invention, a connecting plate is provided at the rotational connection between the support plate and the rotating member, a gap is formed on one side of the support plate, a round rod is fixed in the gap, and the connecting plate is It is sleeved on the surface of the round rod, and the other side of the connecting plate is fixedly connected with the rotating member.

In an embodiment of the present invention, a track groove is formed on the surface of the support plate, a sliding rod is fixed in the track groove groove, the sliding rod is fixedly connected with the support rod, and the track groove is The moving track provided on the strut matches.

The beneficial effects of the present invention are: the infusion port needle positioning aid obtained by the present invention through the above design, when in use, through the cooperation of the adhesive strip and the adsorption piece, the base can be installed on the skin surface of the patient to adjust the length of the telescopic rod , Adjust the length of the telescopic piece, the positioning block can be tilted, and the rotating piece can make the positioning block rotate, the position of the positioning block can be changed, and the positioning block can be adjusted to the movement track when the needle is inserted without damage, so that the two The positioning holes formed by the engagement of the positioning blocks coincide with the movement trajectory of the non-invasive needle during insertion. The non-invasive needle is passed through the positioning hole and then inserted into the patient's skin. The positioning block can limit the movement of the non-invasive needle. range, reduce the possibility of non-invasive needle sticking, improve the success rate of non-invasive needle puncture, and reduce the pain of patients.

Description of drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of an infusion port needle positioning aid provided by an embodiment of the present invention;

2 is a schematic diagram of a connection structure between a base and a rotating mechanism provided by an embodiment of the present invention;

3 is a schematic structural diagram of an adsorption member provided by an embodiment of the present invention;

4 is a schematic structural diagram of an annular bump provided by an embodiment of the present invention;

5 is a schematic structural diagram of a telescopic rod provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of the connection structure between the positioning mechanism and the support plate according to the embodiment of the present invention.

In the figure: 100-base; 110-adhesive strip; 120-adsorption piece; 121-ring groove; 122-deformation groove; 130-ring bump; 200-rotating mechanism; 210-rotating piece; 211-base block; 212 - Turntable; 213 - Limit Ring; 214 - Ball; 220 - Threaded Fastener; 221 - Threaded Post; 222 - Threaded Block; 223 - Handheld Block; 224 - Guide Rod; 311-gap; 312-round rod; 313-connecting plate; 320-telescopic rod; 321-external thread pipe; 322-internal thread rod; 330-track groove; 340-slide rod; 400-positioning mechanism; 410-shaft rod ; 420-positioning block; 430-spring; 440-strut; 450-arc groove; 460-positioning hole.

Detailed ways

In order to make the purposes, 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 with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation of the present invention.

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 implying the number of indicated technical features. Thus, a feature defined as "first", "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

Example

Referring to FIGS. 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 .

The rotation mechanism 200 is arranged on the surface of the base 100 , the support mechanism 300 is used to connect the rotation mechanism 200 and the positioning mechanism 400 together, and the positioning mechanism 400 is used to position the movement of the non-damaged needle and reduce the deviation of the non-damaged needle. It is possible to improve the success rate of puncture. The rotating mechanism 200 rotates the supporting mechanism 300, thereby enabling the positioning mechanism 400 to adjust the positioning mechanism 400, so as to facilitate the positional movement of the positioning mechanism 400 according to the puncture site of the non-destructive needle. The positioning mechanism 400 is made available for use with atraumatic needles.

1-4, the bottom end of the base 100 is installed with an adhesive strip 110, and the center of the bottom end of the base 100 is fixed with an adsorption member 120. The base 100 is installed, and in addition, the adsorption member 120 can be adsorbed on the skin surface of the patient, which facilitates the installation of the base 100 .

In this embodiment, the adsorption member 120 is an annular rubber ring, and the lower end of the adsorption member 120 is provided with an annular groove 121, the cross-section of the annular groove 121 is trapezoidal, and the inner top surface of the adsorption member 120 is provided with a deformation groove 122, and The deformation groove 122 is communicated with the annular groove 121, so that the adsorbent 120 is in contact with the patient's skin and deformed. The annular groove 121 is forced to open its mouth to wrap the skin, and at the same time, the air in the annular groove 121 is squeezed out, and a negative pressure is formed inside it. The skin is sucked into the deformation groove 122 to fix the adsorption member 120 .

Please refer to FIG. 1 , FIG. 2 and FIG. 4 , the rotating mechanism 200 includes a rotating member 210 and a threaded fastener 220 , the rotating member 210 is rotatably mounted on the top of the base 100 , the threaded fastener 220 is screwed to the base 100 , and the thread One side of the fastener 220 is attached to the rotating member 210. In the specific implementation, rotating the rotating member 210 can drive the support plate 310 and the telescopic rod 320 to rotate, and the threaded fastener 220 is rotated to squeeze the threaded fastener 220. The rotating member 210 can be fixed by the rotating member 210 .

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 projection 130 is fixed inside the base 100, and the base block 211 is rotatably mounted on the annular Inside the bump 130, the turntable 212 is fixed on the surface of the base block 211, the turntable 212 is connected with the support plate 310 and the telescopic rod 320, and the rotation of the base block 211 can drive the turntable 212, the support plate 310 and the telescopic rod 320 to rotate;

Further, the surface of the base block 211 is fastened and sleeved with the limit ring 213 , the limit ring 213 and the turntable 212 are respectively located on both sides of the annular projection 130 , and the diameter of the outer ring of the limit ring 213 and the diameter of the turntable 212 are different. The diameter of the outer ring of the annular bump 130 is smaller than that of the annular bump 130. The limit ring 213 cooperates with the turntable 212 to limit the movement range of the base block 211 and reduce the possibility of the base block 211 inferring the base 100; Balls 214 are installed on both the upper end surface and the lower end surface. Any ball 214 is attached to one of the turntable 212 and the limit ring 213. The addition of balls 214 can make the rotation of the turntable 212 and the limit ring 213 smoother, which is beneficial to the rotating parts. 210 turns.

The threaded fastener 220 includes a threaded post 221 and a threaded block 222. The threaded post 221 is rotatably mounted on the surface of the base 100, the threaded block 222 is screwed to the threaded post 221, and one side of the threaded block 222 is in close contact with the rotating member 210 and rotates. The threaded post 221 can make the threaded block 222 move along the threaded post 221, so that the threaded block 222 can move to the surface of the rotating member 210, and the threaded block 222 can squeeze the rotating member 210 to increase the resistance when the rotating member 210 rotates , so as to fix the rotating member 210;

Further, a hand-held block 223 is keyed on the surface of the threaded post 221, the hand-held block 223 is set in a disc shape, and the edge of the hand-held block 223 is engraved with anti-slip lines. Rotation is convenient for the operator to operate the threaded post 221. A guide rod 224 is fixed on the surface of the base 100. One end of the guide rod 224 penetrates the threaded block 222, and the guide rod 224 and the threaded block 222 are in clearance fit. The movement direction of the threaded block 222 is restricted to make the movement of the threaded block 222 more stable.

Please refer to FIG. 1 , FIG. 2 , FIG. 5 and FIG. 6 , the support mechanism 300 includes a support plate 310 and a telescopic rod 320 , the support plate 310 is rotatably installed on the upper end of the rotating member 210 , and one end of the telescopic rod 320 is rotatably installed on the surface of the rotating member 210 , and the other end of the telescopic rod 320 is hinged with the support plate 310. In the specific implementation, by adjusting the length of the telescopic rod 320, the telescopic rod 320 can support the support plate 310, make the support plate 310 rotate, and then drive the positioning block 420 to rotate , the positioning block 420 can be inclined, so that the non-damaged needle can pass through between the two positioning blocks 420 obliquely.

In this embodiment, a connecting plate 313 is provided at the rotational connection between the support plate 310 and the rotating member 210 , a gap 311 is formed on one side of the support plate 310 , a round rod 312 is fixed in the gap 311 , and 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 with the rotating member 210. The rotation of the round rod 312 can drive the supporting plate 310 to rotate, so that the rotational connection between the supporting plate 310 and the rotating member 210 is more stable. The other side of the plate 313 can be fixed on the surface of the turntable 212 in the rotating member 210;

The telescopic rod 320 includes an externally threaded pipe 321 and an internally threaded rod 322, one end of the externally threaded pipe 321 is rotatably connected to the turntable 212 through a bearing, the internally threaded rod 322 is screwed into the externally threaded pipe 321, and one end of the internally threaded rod 322 passes through the hinge seat It is hinged with the support plate 310 and the externally threaded pipe 321 is rotated, so that the internally threaded rod 322 can move along the externally threaded pipe 321 , so as to realize the adjustment of the length of the telescopic rod 320 .

1 and 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. The positioning block 420 is provided with two, and the two positioning blocks 420 are respectively fixed on the ends of the two struts 440, the spring 430 is installed between the two struts 440, and the surfaces of the two positioning blocks 420 are provided with arc grooves 450, And the two arc-shaped grooves 450 are engaged to form a positioning hole 460. In the specific implementation, the non-invasive needle can be passed through the positioning hole 460 between the two positioning blocks 420, and then inserted into the patient's skin, positioning the needle. The block 420 can limit the movement range of the non-injury needle, reduce the possibility of the non-injury needle being stuck, improve the success rate of the non-injury needle puncture, and reduce the pain of the patient. It should be noted that the spring 430 and the positioning block 420 are located in the On both sides of the shaft 410, the springs 430 can support the two struts 440, so that the two struts 440 rotate relatively around the shaft 410, so that the two positioning blocks 420 move relatively, and the two positioning blocks 420 are can be snapped together.

In this embodiment, a track groove 330 is formed on the surface of the support plate 310 , a sliding rod 340 is fixed in the groove of the track groove 330 , the sliding rod 340 is fixedly connected with the support rod 440 , and the track groove 330 is arranged for the movement of the support rod 440 . The tracks are matched, and the moving range of the sliding rod 340 is limited by the track groove 330 , so that the movement of the sliding rod 340 can be made more stable, thereby making the rotation of the support rod 440 more stable.

Specifically, the working principle of the infusion port needle positioning aid: before needle insertion, the base 100 can be installed by adhering the adhesive strip 110 to the patient's skin surface. It is adsorbed on the skin surface of the patient to make the installation of the base 100 more stable. By adjusting the length of the telescopic rod 320, the telescopic rod 320 can support the support plate 310, so that the support plate 310 rotates, and then drives the positioning block 420 to rotate, which can make the support plate 310 rotate. The positioning block 420 is tilted, and the rotating member 210 can be rotated to drive the telescopic rod 320, the support plate 310 and the positioning block 420 to rotate, and the position of the positioning block 420 can be changed, so that the positioning block 420 can be adjusted to the position when the needle is inserted without damage. On the moving track, the positioning hole 460 formed by the engagement of the two positioning blocks 420 coincides with the moving track of the non-invasive needle when the non-invasive needle is inserted, and the non-invasive needle is passed through the positioning hole 460, and then inserted into the skin of the patient, The positioning block 420 can limit the movement range of the non-injury needle, reduce the possibility of the non-injury needle being punctured, improve the success rate of the non-injury needle puncture, and reduce the pain of the patient.

It should be noted that the specific model specifications of the spring 430 need to be selected and determined according to the actual specifications of the device, and the specific selection and calculation method adopts the prior art in the field, so it will not be described in detail.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. an infusion port needle positioning aid, is characterized in that, comprises a base (100), an adhesive strip (110) is installed at the bottom end of the base (100), and a suction member (120) is fixed at the center of the bottom end of the base (100); A rotating mechanism (200), the rotating mechanism (200) includes a rotating member (210) and a threaded fastener (220), the rotating member (210) is rotatably mounted on the top of the base (100), and the thread A fastener (220) is screwed on the base (100), and one side of the threaded fastener (220) is attached to the rotating member (210); A support mechanism (300), the support mechanism (300) comprises a support plate (310) and a telescopic rod (320), the support plate (310) is rotatably mounted on the upper end of the rotating member (210), the telescopic rod (320) One end of (320) is rotatably mounted on the surface of the rotating member (210), and the other end of the telescopic rod (320) is hinged with the support plate (310); a positioning mechanism (400), 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 mounted on the surface of the shaft rod (410), two positioning blocks (420) are provided, and the two positioning blocks (420) are respectively fixed on the two support rods. At the end of the rod (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-shaped grooves (450), and the two Each of the arc-shaped grooves (450) is engaged to form a positioning hole (460). 2 . The infusion port needle positioning aid according to claim 1 , wherein the adsorption member ( 120 ) is an annular rubber ring, and the lower end of the adsorption member ( 120 ) is provided with an annular A groove (121), the cross section of the annular groove (121) is trapezoidal, a deformation groove (122) is formed on the inner top surface of the adsorption member (120), and the deformation groove (122) is connected to the annular groove ( 121) Connect. 3. An infusion port needle positioning aid according to claim 1, characterized in that, the rotating member (210) comprises a base block (211) and a turntable (212), and the base block (211) is formed into a Cylindrical, the base (100) is an annular seat, an annular bump (130) is fixed inside the base (100), and the base block (211) is rotatably mounted on the annular bump (130) Inside, the turntable (212) is fixed on the surface of the base block (211), and the turntable (212) is connected with the support plate (310) and the telescopic rod (320). 4. An infusion port needle positioning aid according to claim 3, wherein the telescopic rod (320) comprises an externally threaded pipe (321) and an internally threaded rod (322), and the externally threaded pipe One end of (321) is rotatably connected to the turntable (212) through a bearing, the internally threaded rod (322) is screwed into the externally threaded pipe (321), and one end of the internally threaded rod (322) passes through The hinge seat is hinged with the support plate (310). 5. An infusion port needle positioning aid according to claim 3, characterized in that a limit ring (213) is fastened and 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 projection (130), and the diameter of the outer ring of the limiting ring (213) and the diameter of the turntable (212) are not smaller than the diameter of the ring Diameter of the outer ring of the bump (130). 6. An infusion port needle positioning aid according to claim 5, characterized in that, balls (214) are rolled and installed on the upper and lower end faces of the base block (211), and any one of the balls (214) is attached to one of the turntable (212) and the limiting ring (213). 7. An infusion port needle positioning aid according to claim 1, wherein the threaded fastener (220) comprises a threaded post (221) and a threaded block (222), and the threaded post (220) 221) Rotatingly mounted on the surface of the base (100), the threaded block (222) is screwed on the threaded post (221), and one side of the threaded block (222) is in close contact with the rotating member (210). 8. An infusion port needle positioning aid according to claim 7, wherein a hand-held block (223) is keyed on the surface of the threaded post (221), and the hand-held block (223) is arranged in a circular shape Disk-shaped, and the edge of the hand-held block (223) is engraved with anti-skid patterns at intervals, a guide rod (224) is fixed on the surface of the base (100), and one end of the guide rod (224) penetrates the threaded block (222), and the guide rod (224) is in clearance fit with the threaded block (222). 9. An infusion port needle positioning aid according to claim 1, wherein a connecting plate (313) is provided at the rotational connection between the support plate (310) and the rotating member (210), One side of the support plate (310) is provided with a gap (311), a round rod (312) is fixed in the gap (311), the connecting plate (313) is sleeved on the surface of the round rod (312), and the The other side of the connecting plate (313) is fixedly connected with the rotating member (210). 10. The infusion port needle positioning aid according to claim 1, wherein a track groove (330) is formed on the surface of the support plate (310), and the track groove (330) is fixed in the groove There is a sliding rod (340), the sliding rod (340) is fixedly connected with the support rod (440), and the track groove (330) is arranged on the moving track of the support rod (440) to match.

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