CN211985722U

CN211985722U - A arm fixer for PICC puncture position

Info

Publication number: CN211985722U
Application number: CN202020295180.1U
Authority: CN
Inventors: 贺静
Original assignee: Third Affiliated Hospital of Guangzhou Medical University
Current assignee: Third Affiliated Hospital of Guangzhou Medical University
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-11-24
Anticipated expiration: 2030-03-11

Abstract

The utility model relates to the technical field of medical appliances, concretely relates to an arm fixer for PICC puncture position. The arm positioning groove is concavely arranged on the bottom plate, the first fixing piece is fixedly arranged on one side of the arm positioning groove, and the second fixing piece is movably arranged in the arm positioning groove; a first convex tooth assembly is arranged in the arm positioning groove, a second convex tooth assembly meshed with the first convex tooth assembly is arranged at the bottom of the second fixing piece, and the second fixing piece is movably arranged relative to the first fixing piece; the fixing frame is provided with an accommodating cavity in interference fit with the bottom plate. The utility model discloses an arm fixer, novel structure, easy operation can be through removing the second mounting to make second dogtooth subassembly and first dogtooth subassembly mesh mutually, and then fix a position the second mounting, further fix the puncture position, easily carry out PICC puncture position, the practicality is high.

Description

A arm fixer for PICC puncture position

Technical Field

The utility model relates to the technical field of medical appliances, concretely relates to an arm fixer for PICC puncture position.

Background

Currently, clinically ascending PICC (peripheral Inserted Central catheterizations, i.e. Central venous catheterization via peripheral venipuncture) punctures are commonly used to provide patients with medium and long term intravenous infusion therapy. However, in the actual clinical operation, the puncture site is easy to slide, the blood vessel is easy to slide, and the like, so that the puncture is unsuccessful. And at present, a fixer specially used for PICC puncture is provided on the market, so that the difficulty of PICC puncture is greatly increased.

Disclosure of Invention

In order to overcome the shortcoming and the not enough that exist among the prior art, the utility model aims to provide an arm fixer for PICC puncture position, novel structure, easy operation can be through removing the second mounting to make second dogtooth subassembly and first dogtooth subassembly mesh mutually, and then fix a position the second mounting, further fix the puncture position, easily carry out PICC puncture position, the practicality is high.

The purpose of the utility model is realized through the following technical scheme: an arm fixer for a PICC puncture part comprises a bottom plate, a fixing frame, a first fixing piece and a second fixing piece, wherein an arm positioning groove is concavely arranged on the bottom plate, the first fixing piece is fixedly arranged on one side of the arm positioning groove, and the second fixing piece is movably arranged in the arm positioning groove; a first convex tooth assembly is arranged in the arm positioning groove, a second convex tooth assembly meshed with the first convex tooth assembly is arranged at the bottom of the second fixing piece, and the second fixing piece is movably arranged relative to the first fixing piece; the fixing frame is provided with an accommodating cavity in interference fit with the bottom plate.

Furthermore, the first convex tooth assembly consists of a plurality of first teeth and is fixedly arranged at the bottom of the arm positioning groove; the second convex tooth assembly is composed of a plurality of second teeth and is fixedly arranged at the bottom of the second fixing piece.

Furthermore, the arm fixer also comprises an adjusting component, wherein the adjusting component comprises a first limiting block, a pull rod and a second limiting block which are sequentially arranged, a spring is sleeved on the periphery of the pull rod, and a through hole for the pull rod to pass through is formed in one side of the fixing frame; first stopper and spring all set up in holding intracavity wall, the one end and the first stopper butt of spring, the other end of spring and the inside wall butt of mount, the second stopper sets up in the outside of mount.

Furthermore, the longitudinal sectional area of the first limiting block and the longitudinal sectional area of the second limiting block are both larger than the longitudinal sectional area of the through hole, the longitudinal sectional area of the pull rod is smaller than the longitudinal sectional area of the through hole, the diameter of the spring is larger than that of the through hole, and the length of the pull rod is larger than the depth of the through hole.

Furthermore, the adjusting component further comprises a handheld piece arranged at the tail end of the second limiting block, and the longitudinal sectional area of the handheld piece is gradually increased from one end close to the second limiting block to one end far away from the second limiting block.

Furthermore, the two side walls of the bottom plate are arranged from the top to the bottom in an inward inclined mode, and the two inner side walls of the fixing frame are arranged from the top to the bottom in an inward inclined mode.

Furthermore, first mounting and second mounting opposite direction set up, first mounting and second mounting all are the slide form, and the holding surface of first mounting and second mounting all is 1/4 arc.

Further, the height of the fixing frame is larger than the sum of the heights of the second fixing piece, the second convex tooth assembly, the first convex tooth assembly and the bottom plate.

The beneficial effects of the utility model reside in that: the arm fixer of this embodiment novel structure, and is simple in operation, can be through removing the second mounting, and make second dogtooth subassembly and first dogtooth subassembly mesh mutually, and then fix a position the second mounting, and first mounting sets up in the top of bottom plate for fixed, can adjust the position of second mounting according to patient's arm size, in order to adapt to patient's arm size, locate the bottom plate with the mount cover at last, the top of first mounting and second mounting, the realization is fixed the puncture position, fix a position, easily carry out PICC puncture position, and the practicality is high.

Drawings

FIG. 1 is an exploded schematic view of the present invention;

fig. 2 is a sectional view of the present invention in an exploded state;

fig. 3 is a sectional view of the present invention in the assembled state.

The reference signs are: 1-bottom plate, 2-mount, 21-through-hole, 22-holding chamber, 3-arm constant head tank, 4-first mounting, 5-second mounting, 51-second dogtooth subassembly, 511-second tooth, 6-first dogtooth subassembly, 61-first tooth, 7-adjusting part, 71-first stopper, 72-pull rod, 73-second stopper, 74-spring, 75-handheld piece.

Detailed Description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1-3, which are not intended to limit the present invention.

Referring to fig. 1-3, an arm holder for a PICC puncture site comprises a bottom plate 1, a fixing frame 2, a first fixing member 4 and a second fixing member 5, wherein an arm positioning slot 3 is concavely arranged on the bottom plate 1, the first fixing member 4 is fixedly arranged at one side of the arm positioning slot 3, and the second fixing member 5 is movably arranged in the arm positioning slot 3;

a first convex tooth assembly 6 is arranged in the arm positioning groove 3, a second convex tooth assembly 51 meshed with the first convex tooth assembly 6 is arranged at the bottom of the second fixing piece 5, and the second fixing piece 5 can be movably arranged relative to the first fixing piece 4; the fixing frame 2 is provided with an accommodating cavity 22 which is in interference fit with the bottom plate 1.

The arm fixer of this embodiment is novel in structure, the operation is simple, can be through removing second mounting 5, and make second dogtooth subassembly 51 mesh with first dogtooth subassembly 6 mutually, and then fix a position second mounting 5, and first mounting 4 sets up in one side of arm constant head tank 3 for fixed, can adjust the position of second mounting 5 according to patient's arm size, in order to adapt to patient's arm size, locate bottom plate 1, the top of first mounting 4 and second mounting 5 with mount 2 cover at last, specifically be two lateral walls of bottom plate 1 and two inside wall butts of mount 2, and the lid closes first mounting 4 and second mounting 5, make bottom plate 1 and second mounting 5 all locate in the holding chamber 22 of mount 2, realize fixing the puncture position, fix a position, easily carry out PICC puncture position, the practicality is high.

Preferably, two side walls of the bottom plate 1 are arranged from the top to the bottom in an inward inclined manner, and two inner side walls of the fixing frame 2 are arranged from the top to the bottom in an inward inclined manner.

Two inside wall leanings of this embodiment mount 2 set up, enclose with the horizontal plane and establish into trapezoidal holding chamber 22 that falls, and the slope setting of bottom plate 1 both sides wall is the trapezoidal structure that falls that then forms with upper and lower horizontal plane, cooperate with mount 2, the cartridge is in the trapezoidal holding chamber 22 that falls of mount 2, the joint stability of mount 2 and bottom plate 1 has been improved, the direction that makes progress is difficult to remove mount 2, the orientation that needs to move back and forth toward mount 2 comes to separate with bottom plate 1, make the location performance of whole fixer high, stability is good, the practicality is high.

This embodiment is in the use, place the puncture position on first mounting 4 earlier, adjust the position of second mounting 5 according to patient's arm size, and locate first dogtooth subassembly 6 with the second dogtooth subassembly 51 card of second dogtooth subassembly 51 bottom, realize the meshing, fix a position second mounting 5, it is spacing, prevent that second mounting 5 from removing, last cover is established mount 2, make first mounting 4, the inner wall of second mounting 5 and mount 2 encloses and establishes into and places the cavity, fix a position the puncture position, avoid the puncture position to slide, easily puncture, and the practicality is high.

In this embodiment, the first tooth assembly 6 is composed of a plurality of first teeth 61 and is fixedly disposed at the bottom of the arm positioning slot 3; the second tooth assembly 51 is composed of a plurality of second teeth 511 and is fixedly disposed at the bottom of the second fixing member 5.

Form the holding breach of first dogtooth subassembly 6 between the adjacent first tooth 61 of this embodiment, and second tooth 511 then the card is located in this holding breach, mend each other, and contradict each other, and then realize the meshing of first tooth 61 and second tooth 511, it is spacing to carry out second mounting 5, avoid second mounting 5 to slide at the top of bottom plate 1 at will and be difficult to fix the arm, realize the location of second mounting 5, make the fixer can carry out the accommodation space between first mounting 4 and the second mounting 5 according to patient's puncture position size and adjust, the controllability is high, and the practicality is good.

In this embodiment, the arm fixator further includes an adjusting assembly 7, the adjusting assembly 7 includes a first limiting block 71, a pull rod 72 and a second limiting block 73, which are sequentially connected, a spring 74 is sleeved on the periphery of the pull rod 72, and a through hole 21 penetrating through the side wall is formed on the side wall of one side of the fixing frame 2 for the pull rod 72 to pass through; the first limiting block 71 and the spring 74 are both arranged in the accommodating cavity 22, one end of the spring 74 can be abutted against the first limiting block 71, the other end of the spring 74 is abutted against the inner side wall of the fixing frame 2, and the second limiting block 73 is arranged on the outer side wall of the fixing frame 2.

In this embodiment, the longitudinal sectional area of the first limiting block 71 and the longitudinal sectional area of the second limiting block 73 are both larger than the longitudinal sectional area of the through hole 21, the longitudinal sectional area of the pull rod 72 is smaller than the longitudinal sectional area of the through hole 21, the diameter of the spring 74 is larger than the diameter of the through hole 21, and the length of the pull rod 72 is larger than the depth of the through hole 21.

In the adjusting assembly 7 of this embodiment, the pull rod 72 penetrates through the through hole 21 of the side wall of the fixing frame 2, the longitudinal sectional area of the pull rod 72 is smaller than the longitudinal sectional area of the through hole 21, and the length of the pull rod 72 is greater than the depth of the through hole 21, so that the pull rod 72 can move freely in the through hole 21. The spring 74 is disposed on the periphery of the pull rod 72, and the diameter of the spring 74 is greater than that of the through hole 21, so that the spring 74 cannot enter or pass through the second through hole 21, the first limit block 71 is fixedly disposed at one end of the pull rod 72, the first limit block 71 and the spring 74 are both disposed in the accommodating cavity 22, two ends of the spring 74 respectively abut against the first limit block 71 and the inner side wall of the fixing frame 2, when the pull rod 72 is pulled outwards, the pull rod 72 drives the first limit block 71 to move towards the direction close to the through hole 21, and the spring 74 is compressed, so that the spring 74 is compressed between the first limit block 71 and the inner side wall of the fixing frame 2, and a space for the bottom plate 1 to move to the accommodating cavity 22 is provided.

The second limiting block 73 is arranged on the outer side wall of the fixed frame 2, and the longitudinal sectional area of the second limiting block 73 is larger than that of the through hole 21, so that the second limiting block 73 cannot enter or pass through the through hole 21, and the pull rod 72 is positioned; the second limiting block 73 is pulled outwards (towards the direction away from the through hole 21), the pull rod 72 is driven to be pulled outwards, the first limiting block 71 is driven to move towards the direction of the through hole 21, the compression spring 74 is loosened from the second limiting block 73, the first limiting block 71 is bounced outwards towards the direction away from the through hole 21 under the elastic action of the compressed spring 74, the pull rod 72 is driven to move towards the direction of the accommodating cavity 22, the second limiting block 73 is abutted against the outer side wall of the fixing frame 2, and the situation that the whole pull rod 72 enters the accommodating cavity 22 and influences the normal use of the subsequent adjusting assembly 7 is avoided.

When in use, when the fixing frame 2 needs to be sleeved on the bottom plate 1 for positioning, the spring 7 is compressed because the two ends of the spring 74 are respectively abutted against the first limiting block 71 and the inner side wall of the fixing frame 2, and the first limit block 71 is pressed outwards to be abutted against the outer side wall of the bottom plate 1 under the action of the elastic force of the spring 74, pressure is applied to the side wall of the bottom plate 1, and then the bottom plate 1 is abutted towards the direction far away from the through hole 21, so that the other outer side wall of the bottom plate 1 is abutted with the other inner side wall of the fixed frame 2, thereby leading the bottom plate 1 and the fixing frame 2 to be in a stable state under the action of elasticity and not to be easy to shift, avoiding the bottom plate 1 from sliding in the fixing frame 2, improving the fixing function of the whole fixer on the puncture part, meanwhile, the second limiting block 73 is limited on the outer side wall, so that the second limiting block 73 is prevented from entering the inner side wall through the through hole 21 to influence the elastic action of the spring 74 and the convenience of removing the fixing frame 2.

When the fixing frame 2 needs to be removed, the second limiting block 73 is pulled, because the two ends of the pull rod 72 are respectively connected with the first limiting block 71 and the second limiting block 73, the pull rod 72 can be driven to be pulled in the through hole 21, and then the first limiting block 71 is driven to be pulled in the direction close to the through hole 21, and the spring 74 is compressed, so that the first limiting block 71 leaves the outer side wall of the bottom plate 1, and further a yielding space is reserved between the outer side wall of the bottom plate 1 and the inner side wall of the fixing frame 2, and the fixing frame 2 is convenient to remove.

In this embodiment, the adjusting assembly 7 further includes a handheld member 75 disposed at the end of the second limiting block 73, and the longitudinal sectional area of the handheld member 75 gradually increases from the end close to the second limiting block 73 to the end far away from the second limiting block 73.

This embodiment is through setting up handheld piece 75, prolongs the horizontal length of second stopper 73, is convenient for spur second stopper 73 to inject its longitudinal section area from interior to exterior crescent, make when this handheld piece 75 of pulling, the big part of longitudinal section area is close to human palm of the hand, is convenient for spur, and difficult skidding, the practicality is high.

In this embodiment, the first fixing element 4 and the second fixing element 5 are disposed opposite to each other, the first fixing element 4 and the second fixing element 5 are both in a slide shape, and the supporting surfaces of the first fixing element 4 and the second fixing element 5 are both in an 1/4 circular arc shape.

The relative holding surface of first mounting 4 and second mounting 5 of this embodiment encloses the space of establishing into the holding puncture position, and relative holding surface personally submits 1/4 arc, can with puncture position phase-matches such as human arm for the puncture position is placed in the travelling comfort on first mounting 4 and second mounting 5, and the practicality is high.

In this embodiment, the height of the fixing frame 2 is greater than the sum of the heights of the second fixing member 5, the second tooth assembly 51, the first tooth assembly 6 and the bottom plate 1.

The height of this embodiment mount 2 is greater than the high sum of second mounting 5, second dogtooth subassembly 51, first dogtooth subassembly 6 and bottom plate 1, places second mounting 5 back promptly, still has the clearance between the inner wall at second mounting 5 and mount 2 top, can provide sufficient accommodation space for the puncture position for mount 2 can not cause the oppression to the puncture position, and the practicality is high.

The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.

Claims

1. The utility model provides an arm fixer for PICC puncture position which characterized in that: the arm fixer comprises a bottom plate (1), a fixing frame (2), a first fixing piece (4) and a second fixing piece (5), wherein an arm positioning groove (3) is concavely arranged on the bottom plate (1), the first fixing piece (4) is fixedly arranged on one side of the arm positioning groove (3), and the second fixing piece (5) is movably arranged in the arm positioning groove (3);

a first convex tooth assembly (6) is arranged in the arm positioning groove (3), a second convex tooth assembly (51) meshed with the first convex tooth assembly (6) is arranged at the bottom of the second fixing piece (5), and the second fixing piece (5) is movably arranged relative to the first fixing piece (4); the fixing frame (2) is internally provided with an accommodating cavity (22) which is in interference fit with the bottom plate (1).

2. An arm holder for a PICC puncture site according to claim 1, wherein: the first convex tooth assembly (6) consists of a plurality of first teeth (61) and is fixedly arranged at the bottom of the arm positioning groove (3); the second convex tooth assembly (51) consists of a plurality of second teeth (511) and is fixedly arranged at the bottom of the second fixing piece (5).

3. An arm holder for a PICC puncture site according to claim 1, wherein: the arm fixer further comprises an adjusting component (7), wherein the adjusting component (7) comprises a first limiting block (71), a pull rod (72) and a second limiting block (73), which are sequentially arranged, a spring (74) is sleeved on the periphery of the pull rod (72), and a through hole (21) for the pull rod (72) to pass through is formed in one side of the fixing frame (2); the first limiting block (71) and the spring (74) are arranged in the accommodating cavity (22), one end of the spring (74) is abutted to the first limiting block (71), the other end of the spring (74) is abutted to the inner side wall of the fixing frame (2), and the second limiting block (73) is arranged on the outer side wall of the fixing frame (2).

4. An arm holder for a PICC puncture site according to claim 3, wherein: the longitudinal section area of first stopper (71), the longitudinal section area of second stopper (73) all are greater than the longitudinal section area of through-hole (21), the longitudinal section area of pull rod (72) is less than the longitudinal section area of through-hole (21), the diameter of spring (74) is greater than the diameter of through-hole (21), the length of pull rod (72) is greater than the degree of depth of through-hole (21).

5. An arm holder for a PICC puncture site according to claim 3, wherein: the adjusting assembly (7) further comprises a handheld piece (75) arranged at the tail end of the second limiting block (73), and the longitudinal sectional area of the handheld piece (75) is gradually increased from one end close to the second limiting block (73) to one end far away from the second limiting block (73).

6. An arm holder for a PICC puncture site according to claim 1, wherein: the two side walls of the bottom plate (1) are arranged from the top to the bottom in an inward inclined mode, and the two inner side walls of the fixing frame (2) are arranged from the top to the bottom in an inward inclined mode.

7. An arm holder for a PICC puncture site according to claim 1, wherein: the first fixing piece (4) and the second fixing piece (5) are arranged oppositely, the first fixing piece (4) and the second fixing piece (5) are in a slide shape, and the supporting surfaces of the first fixing piece (4) and the second fixing piece (5) are in 1/4 circular arc shapes.

8. An arm holder for a PICC puncture site according to claim 1, wherein: the height of the fixing frame (2) is greater than the sum of the heights of the second fixing piece (5), the second convex tooth assembly (51), the first convex tooth assembly (6) and the bottom plate (1).