CN213466268U

CN213466268U - Dialysis needle fixing device

Info

Publication number: CN213466268U
Application number: CN202020849597.8U
Authority: CN
Inventors: 杨文君; 耿伟; 马琴; 虞妙婷; 薛素梅
Original assignee: First Affiliated Hospital of Xinjiang Medical University
Current assignee: First Affiliated Hospital of Xinjiang Medical University
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-06-18
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a dialysis needle fixing device, including left branch strut frame, centre gripping extending structure, support sheet metal, right branch strut frame, bracing piece, the spacing lantern ring, telescopic link, sliding block, gyro wheel, block metal piece, fixed screw, inner tube, outer tube, fixed pulley, first metal piece, locking axle, locking cover, cavity metal piece and dialysis syringe needle. Patient sleeps among the dialysis process, sit up and not all lead to the dialysis tube to drop easily by autonomic activity, the syringe needle shifts very easily, puncture vascular phenomenon, sliding block and gyro wheel that contain in this device, when the patient changes the posture and then has pulled the position of blood flow pipeline, the smooth motion of sliding block and gyro wheel can effectually eliminate above drawback, make the patient no longer need keep fixed posture, medical personnel's working strength has been alleviateed when the patient is comfortable, the work of accomodating of the back pipeline of also making things convenient for dialysis simultaneously to centre gripping extending structure's design.

Description

Dialysis needle fixing device

Technical Field

The utility model relates to a fixing device, in particular to a dialysis needle fixing device, which belongs to the technical field of medical instruments.

Background

Hemodialysis (HD) is one of the alternative treatments for the kidney of patients with acute and chronic renal failure. The method comprises the steps of draining blood in vivo to the outside of the body, enabling the blood and electrolyte solution (dialysate) with similar body concentration to be inside and outside one hollow fiber through a dialyzer consisting of a plurality of hollow fibers, and carrying out substance exchange through dispersion, ultrafiltration, adsorption and convection principles, so as to remove metabolic waste in the body and maintain the balance of electrolyte and acid and alkali; at the same time, the excess water in the body is removed, and the whole process of purified blood reinfusion is called hemodialysis. At present, the puncture needle insertion is mainly performed on the upper limb of a patient clinically, and the dialysis time of the patient is up to more than 4 hours when the puncture needle is used.

In the dialysis process, the patient is easy to fall off from the dialysis tube due to sleeping, sitting and involuntary movement, and the needle head is easy to shift and puncture the blood vessel, so that the dialysis puncture needle is separated from the blood vessel or blood is extravasated, normal hemodialysis is affected, pain is caused to the patient, other unpredictable results can be caused, and the work difficulty is increased for medical staff. Accordingly, a dialysis needle fixing device is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dialysis needle fixing device for solving the problems.

The utility model realizes the above purpose through the following technical proposal, a dialysis needle fixing device, which comprises a left support frame, a right support frame, a clamping telescopic structure and a support rod;

the right-hand right branch strut of installing of left branch strut, the rigid coupling has support sheet metal between left branch strut and the right branch strut, support sheet metal's below is installed the centre gripping extending structure, the equal rigid coupling in left and right sides surface of centre gripping extending structure has the bracing piece, two the spacing lantern ring, two have all been cup jointed to the outer wall of the other end of bracing piece the equal rigid coupling in surface of spacing lantern ring has the telescopic link, two the equal rigid coupling in top of telescopic link has the sliding block, two the gyro wheel has all been seted up to the lower surface of sliding block is located the left and right sides of telescopic link, gyro wheel and block metal piece sliding connection, the upper surface of block metal piece is through two fixed screws and support sheet metal's lower surface screw.

Preferably, centre gripping extending structure includes inner tube, outer tube, fixed pulley, first metal block, locking axle, locking cover, cavity metal block and dialysis syringe needle, the fixed pulley has all been seted up along the four sides on the outer tube, the inner tube embedding is installed in the outer tube, four the fixed pulley all closely laminates with the outer wall surface of inner tube, the bottom rigid coupling of inner tube has first metal block, the lower surface rigid coupling of first metal block has the locking axle, the bottom rigid coupling of locking axle has the cavity metal block, the bottom rigid coupling of cavity metal block has the dialysis syringe needle, the locking cover has been seted up to the inner wall of outer tube, the locking axle is installed with locking cover block, just the through-hole has been seted up to locking cover central point, the bore of through-hole is from last to descending degressively.

Preferably, the surface of the locking sleeve, which is far away from the inner wall of the outer tube, is provided with grooves which are parallel to each other.

Preferably, the outer surface of the locking shaft is provided with an annular protrusion part matched with the locking sleeve in size, and the size of the dialysis needle head is larger than the caliber of the bottom of the through hole of the locking sleeve.

Preferably, a sliding groove is formed in the part, tightly attached to the roller, of the clamping metal block.

Preferably, the one end that centre gripping extending structure was kept away from to the bracing piece has gland nut through threaded connection, gland nut closely laminates with the left side surface of the spacing lantern ring, left branch strut and right branch strut are placed respectively in the both sides of disease, centre gripping extending structure is located the disease directly over.

The utility model has the advantages that:

1. the utility model discloses a telescopic link can carry out push-and-pull from top to bottom with centre gripping extending structure, carry out centre gripping extending structure's altitude mixture control with this, make things convenient for the patient to adjust to the position of sitting of oneself, appearance and height to let oneself comfortable height, the installation is dismantled because threaded connection and gland nut are spacing, therefore the operation is comparatively simple quick, each parts machining simple process, and convenient for manufacturing, consequently, the lower convenient later maintenance of manufacturing cost, change accessories also convenient and fast more during bad damage, rotate the connection through installing the telescopic link and have the spacing lantern ring and bracing piece, contain gland nut simultaneously and fix the spacing lantern ring on the surface of bracing piece, guaranteed that centre gripping extending structure can not loosen and collapse in horizontal plane slip push-and-pull process, patient's sleep in the dialysis process, sit up and all lead to the dialysis tube to drop by autonomic activity easily, the syringe needle is very easy to shift, The blood vessel puncture phenomenon can cause the dialysis puncture needle to be separated from the blood vessel or the blood is leaked, the normal hemodialysis is influenced, the pain is caused to a patient, other unexpected results can be caused, the working difficulty is increased for medical staff, and the sliding block and the roller wheel are contained in the device;

2. the extending structure who contains passes through locking shaft and locking cover block, when the puncture of the length overlength of blood flow pipeline can not carry out the dialysis needle, can let the inner tube of cup jointing in the outer tube downwardly stretching more stably.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view of the sliding structure of the present invention;

FIG. 4 is a perspective view of the clamping structure of the present invention;

fig. 5 is a schematic sectional view of the clamping telescopic structure of the present invention.

In the figure: 1. left branch strut, 2, centre gripping extending structure, 3, support sheet metal, 4, right branch strut, 5, bracing piece, 6, spacing lantern ring, 7, telescopic link, 8, sliding block, 9, gyro wheel, 10, block metal block, 11, set screw, 201, inner tube, 202, outer tube, 203, fixed pulley, 204, first metal block, 205, locking axle, 206, locking cover, 207, cavity metal block, 208, dialysis syringe needle.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-5, a dialysis needle fixing device includes a left support frame 1, a right support frame 4, a clamping telescopic structure 2 and a support rod 5;

the right-hand right branch strut 4 of installing of left branch strut 1, the rigid coupling has support sheet metal 3 between left branch strut 1 and the right branch strut 4, centre gripping extending structure 2 is installed to support sheet metal 3's below, the equal rigid coupling in left and right sides surface of centre gripping extending structure 2 has bracing piece 5, two spacing lantern ring 6, two has all been cup jointed to the outer wall of the other end of bracing piece 5 the equal rigid coupling in surface of spacing lantern ring 6 has telescopic link 7, two the equal rigid coupling in top of telescopic link 7 has sliding block 8, two gyro wheel 9 has all been seted up to the left and right sides that sliding block 8's lower surface is located telescopic link 7, gyro wheel 9 and block metal piece 10 sliding connection, the upper surface of block metal piece 10 is through two fixed screws 11 and the lower surface thread fixed connection who supports sheet metal 3.

The clamping telescopic structure 2 comprises an inner tube 201, an outer tube 202, fixed pulleys 203, a first metal block 204, a locking shaft 205, a locking sleeve 206, a hollow metal block 207 and a dialysis needle 208, wherein the fixed pulleys 203 are arranged on four sides of the upper edge of the outer tube 202, the inner tube 201 is embedded in the outer tube 202, the four fixed pulleys 203 are tightly attached to the outer wall surface of the inner tube 201, the first metal block 204 is fixedly connected to the bottom end of the inner tube 201, the locking shaft 205 is fixedly connected to the lower surface of the first metal block 204, the hollow metal block 207 is fixedly connected to the bottom end of the locking shaft 205, the dialysis needle 208 is fixedly connected to the bottom end of the hollow metal block 207, the locking sleeve 206 is arranged on the inner wall of the outer tube 202, the locking shaft 205 is mounted with the locking sleeve 206 in a clamping manner, a through hole is formed in the center of the locking sleeve 206, and the; the surface of the locking sleeve 206 on the side far away from the inner wall of the outer tube 202 is provided with grooves which are parallel to each other; the outer surface of the locking shaft 205 is provided with an annular protrusion part matched with the locking sleeve 206 in size, and the size of the dialysis needle 208 is larger than the caliber of the bottom of the through hole of the locking sleeve 206; a sliding groove is formed in the part, tightly attached to the roller 9, of the clamping metal block 10; the utility model discloses a support pole, including bracing piece 5, spacing lantern ring 6, left branch strut 1 and right branch strut 4, bracing piece 5 keeps away from one end of centre gripping extending structure 2 has gland nut through threaded connection, gland nut closely laminates with the left side surface of spacing lantern ring 6, place respectively in the both sides of disease, centre gripping extending structure 2 is located the disease directly over.

When the utility model is used, firstly, the installation and debugging personnel install the supporting rods 5 at the left and right sides of the clamping telescopic structure 2 in the limiting sleeve ring 6 in a penetrating way, and prevent the supporting rods 5 from falling off from the limiting sleeve ring 6 through the compression nut, then fix the clamping metal block 10 clamped with the sliding block 8 on the lower surface of the supporting metal plate 3 through the fixing screw 11, push and pull the clamping telescopic structure 2 up and down through the telescopic rod 7, so as to adjust the height of the clamping telescopic structure 2, thereby facilitating the patients to adjust to the comfortable height according to the sitting posture, the appearance and the height, the installation and the disassembly are simple and quick in operation due to the threaded connection and the compression nut limiting, each part processing technology is simple, the manufacturing is convenient, the production cost is low, the later maintenance is convenient, the spare and accessory replacement is more convenient and quick when the damage is caused, the telescopic rod 7 is installed and the limiting sleeve ring 6 and the supporting rods, meanwhile, the device comprises a compression nut to fix a limiting lantern ring 6 on the surface of a supporting rod 5, so that the clamping telescopic structure 2 cannot be loosened and collapsed in the sliding and pushing and pulling process of a horizontal plane, a dialysis tube is easy to fall off when a patient sleeps, sits and moves independently in the dialysis process, a needle head is easy to shift and puncture the blood vessel, a dialysis puncture needle is separated from the blood vessel or blood is easy to leak, and normal hemodialysis is affected, so that the device not only causes pain to the patient, but also can cause other unpredictable results, and meanwhile, the device increases the working difficulty for medical staff, and a sliding block 8 and a roller 9 are contained in the device, when the patient changes the body state and further pulls the position of a blood flow pipeline, the smooth movement of the sliding block 8 and the roller 9 can effectively eliminate the defects, so that the patient does not need to keep a fixed posture, and the working intensity of the medical staff is relieved while the patient, also make things convenient for the work of accomodating of dialysis back pipeline simultaneously in the design of centre gripping extending structure 2, the extending structure 2 that this device contained has inserted the blood flow pipeline through locking axle 205 and locking cover 206 block in the cavity metal block 207, when the length of blood flow pipeline is too short can not carry out the puncture of dialysis needle, can let the inner tube 201 of cup jointing in outer tube 202 stretch downwards more steadily.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A dialysis needle fixing device is characterized in that: comprises a left support frame (1), a right support frame (4), a clamping telescopic structure (2) and a support rod (5);

right-hand right branch strut (4) of installing of left branch strut (1), the rigid coupling has support sheet metal (3) between left branch strut (1) and right branch strut (4), centre gripping extending structure (2) are installed to the below of support sheet metal (3), the equal rigid coupling in both sides surface has bracing piece (5), two about centre gripping extending structure (2) the outer wall of the other end of bracing piece (5) has all cup jointed spacing lantern ring (6), two the equal rigid coupling in surface of spacing lantern ring (6) has telescopic link (7), two the equal rigid coupling in top of telescopic link (7) has sliding block (8), two gyro wheel (9) have all been seted up to the lower surface of sliding block (8) is located the left and right sides of telescopic link (7), gyro wheel (9) and block metal piece (10) sliding connection, the upper surface of block metal piece (10) is through two fixed screws (11) and the lower surface screw thread of support sheet metal (3) And (4) fixedly connecting.

2. The dialysis needle fixing device according to claim 1, wherein: the clamping telescopic structure (2) comprises an inner tube (201), an outer tube (202), a fixed pulley (203), a first metal block (204), a locking shaft (205), a locking sleeve (206), a hollow metal block (207) and a dialysis needle (208), wherein the fixed pulleys (203) are arranged on the upper edge of the outer tube (202) along four edges, the inner tube (201) is embedded in the outer tube (202), the four fixed pulleys (203) are tightly attached to the outer wall surface of the inner tube (201), the bottom end of the inner tube (201) is fixedly connected with the first metal block (204), the lower surface of the first metal block (204) is fixedly connected with the locking shaft (205), the bottom end of the locking shaft (205) is fixedly connected with the hollow metal block (207), the bottom end of the hollow metal block (207) is fixedly connected with the dialysis needle (208), the inner wall of the outer tube (202) is provided with the locking sleeve (206), and the locking shaft (205) is clamped with the locking sleeve (206), and a through hole is formed in the center of the locking sleeve (206), and the caliber of the through hole is gradually decreased from top to bottom.

3. A dialysis needle fixing device according to claim 2, wherein: the surface of the locking sleeve (206) on the side far away from the inner wall of the outer pipe (202) is provided with grooves which are parallel to each other.

4. A dialysis needle fixing device according to claim 2, wherein: the outer surface of the locking shaft (205) is provided with an annular protrusion part matched with the locking sleeve (206) in size, and the size of the dialysis needle (208) is larger than the caliber of the bottom of the through hole of the locking sleeve (206).

5. The dialysis needle fixing device according to claim 1, wherein: the part of the clamping metal block (10) tightly attached to the roller (9) is provided with a sliding groove.

6. The dialysis needle fixing device according to claim 1, wherein: the utility model discloses a supporting rod, including bracing piece (5), left support frame (1), right branch strut (4), centre gripping extending structure (2) are kept away from one end of bracing piece (5) and have gland nut through threaded connection, gland nut closely laminates with the left side surface of spacing lantern ring (6), place respectively in the both sides of disease left side support frame (1) and right branch strut (4), centre gripping extending structure (2) are located the disease directly over.