CN219307534U

CN219307534U - Hemodialysis pipeline fixing device

Info

Publication number: CN219307534U
Application number: CN202223192767.8U
Authority: CN
Inventors: 李芸; 冷盛君
Original assignee: Jiangsu Provincial Hospital of Chinese Medicine
Current assignee: Jiangsu Provincial Hospital of Chinese Medicine
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-07-07
Anticipated expiration: 2032-11-30

Abstract

The utility model provides a hemodialysis pipeline fixing device, which comprises a first fixing mechanism and a second fixing mechanism; the first fixing mechanism comprises a square cavity shell, a moving block, a fixed block, a screw rod and a reset spring. The utility model clamps the arteriovenous line into the cavity from the notch above the first fixing mechanism, and then the arteriovenous line is fixed between the moving block and the fixing block by rotating the screw rod to push the moving block. In this process, the tightness of the fixed arteriovenous line can be adjusted by rotating the screw, and the condition that the pipeline is excessively extruded and is separated does not occur. Moreover, the utility model has simple and exquisite design and convenient operation, can adjust the tightness through rotation, and can not cause misoperation.

Description

Hemodialysis pipeline fixing device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a hemodialysis pipeline fixing device.

Background

Hemodialysis is one of the renal replacement therapy modes for patients with acute and chronic renal failure. The method comprises the steps of draining in-vivo blood to the outside of the body, passing through a dialyzer consisting of innumerable hollow fibers, wherein the blood and electrolyte solution (dialysate) with similar concentration of the body are in and out of the hollow fibers, and carrying out substance exchange by the dispersion, ultrafiltration, adsorption and convection principles to remove metabolic wastes in the body and maintain the balance of the electrolyte and acid and alkali; at the same time, the whole process of removing excessive water from the body and reinfusion of the purified blood is called hemodialysis.

At present, medical staff usually use clamps to fix the arteriovenous vessel on a bed sheet in clinic, and the method is easy to cause reverse folding of the pipeline and unsmooth circulation; moreover, the clamp is large in size and easy to bump, once the clamp slides down, the clamp is easy to be involved in a pipeline, and secondary injury is caused to a patient. Medical staff can also use adhesive tapes to paste on the bed sheet, the fixing effect is poor, and the medical staff can easily fall off after a long time.

The prior art provides some hemodialysis pipeline fixing devices for medical staff, for example, chinese patent publication No. CN217489392U discloses a hemodialysis pipeline fixing clamp, in which a memory elastic sheet is mainly adopted as a fixing clamp for fixing a pipeline in the first embodiment, and the pipeline cannot be attached in practical application, so that the fixing is unstable and easy to fall off; when the spring is adopted, the elasticity of the spring is fixed, the spring cannot be adjusted according to actual conditions, the spring is too tight to excessively squeeze the pipeline easily, and the spring is too loose to cause the pipeline to fall off easily.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a hemodialysis pipeline fixing device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the hemodialysis pipeline fixing device comprises a first fixing mechanism and a second fixing mechanism.

The first fixing mechanism comprises a square cavity shell, a moving block, a fixed block, a screw rod and a reset spring; a linear notch is longitudinally formed in the center of the upper side wall of the shell, the notch is communicated with the inner cavity of the shell, and the shell is free of a front side wall and a rear side wall; a round hole is formed in the center of the left side wall of the shell, the round hole penetrates through the left side wall of the shell, and threads are formed in the inner wall of the round hole; the screw rod penetrates through the round hole and is in meshed rotary connection with the round hole through threads, and the moving block is arranged at the left end of the screw rod; the reset spring ring is arranged on the screw rod and is fixed on the left inner wall of the shell and the left surface of the moving block, and when the reset spring is in a natural state, the rightmost end of the moving block is positioned on the left side of the notch; the fixed block is arranged at the right end inside the shell.

The second fixing mechanism is fixedly connected to the outer wall of the right side of the shell.

According to the utility model, an artery and vein pipeline is clamped into a cavity from a notch above the first fixing mechanism, and then the moving block is pushed by rotating the screw rod, so that the artery and vein pipeline is fixed between the moving block and the fixing block. In this process, the tightness of the fixed arteriovenous line can be adjusted by rotating the screw, and the condition that the pipeline is excessively extruded and is separated does not occur. Moreover, the utility model has simple and exquisite design and convenient operation, can adjust the tightness through rotation, and can not cause misoperation.

Preferably, the left side of the fixed block is a cambered surface A recessed rightward, and the upper side, the lower side and the right side of the fixed block are smooth planes, are attached to the inner wall of the shell and are fixed on the inner wall of the shell. On one hand, the cambered surface is designed to be more fit with the shape of the pipeline, so that excessive extrusion is avoided; on the other hand, the fixed block is fixedly attached to the right end inside the shell, so that the overall stability is improved.

Preferably, the movable block has the same structure as the fixed block, the right side surface of the movable block is a cambered surface B recessed leftwards, the upper side surface, the lower side surface and the left side surface of the movable block are smooth planes and are attached to the inner wall of the shell, and the movable block is placed leftwards and rightwards symmetrically with the fixed block. The two are symmetrically arranged, and the space formed in the middle is more fit with the shape of the pipeline, so that the pipeline is protected.

Preferably, a layer of medical silica gel pad is arranged on each of the cambered surface A and the cambered surface B. On one hand, the device has certain elasticity and can protect a fixed arteriovenous vessel; on the other hand, the anti-slip device has a certain anti-slip effect and avoids the slipping phenomenon of the arterial and venous pipeline during fixation.

Preferably, the screw rod left end is fixed and is equipped with rotatory piece, be equipped with horizontal recess on the rotatory piece, be convenient for medical personnel rotate the screw rod.

Preferably, a sliding device is arranged in the center of the bottom side of the moving block, and the sliding device comprises two longitudinal connecting plates and pulleys; the upper ends of the two connecting plates are fixedly connected to the lower surface of the moving block, the two connecting plates are placed in parallel front and back, and through holes with the same size are formed near the bottom ends of the two connecting plates; a cylindrical rotating shaft is fixedly arranged in the center of two sides of the pulley, and the outer diameter of the rotating shaft is consistent with the inner diameter of the through hole; the pulley is arranged between the two connecting plates in a penetrating way through the two rotating shafts. The sliding device saves more labor in moving the moving block, and avoids the situation that the moving block cannot be reset due to too large friction force when the moving block is reset leftwards under the action of the reset spring; on one hand, the astringent feeling during use is reduced, and on the other hand, the noise reduction effect is also achieved to a certain extent.

Preferably, a transverse chute is formed in the bottom of the inner side of the shell, the position of the chute is matched with the sliding track of the pulley, and the size of the pulley is matched with that of the chute, so that the whole structure is more compact.

Preferably, the shell, the movable block and the fixed block are made of transparent materials, so that medical staff can observe the compression condition of the arteriovenous vessel.

Preferably, the second fixing mechanism is a clip structure and comprises a first clamping plate and a second clamping plate; the first clamping plate is horizontally arranged, and the left end of the first clamping plate is fixedly connected with the outer wall of the right side of the shell; the second clamping plate is obliquely arranged above the first clamping plate, and the right end of the first clamping plate and the right end of the second clamping plate are mutually attached in a natural state. The whole device is more conveniently fixed on the bed board or the bed sheet in a clamping mode.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, an artery and vein pipeline is clamped into a cavity from a notch above the first fixing mechanism, and then the moving block is pushed by rotating the screw rod, so that the artery and vein pipeline is fixed between the moving block and the fixing block. In this process, the tightness of the fixed arteriovenous line can be adjusted by rotating the screw, and the condition that the pipeline is excessively extruded and is separated does not occur. Moreover, the utility model has simple and exquisite design and convenient operation, can adjust the tightness through rotation, and can not cause misoperation.

2. According to the utility model, the sliding device is arranged at the bottom of the moving block, so that the moving block can move more labor-saving, and the situation that the moving block cannot be reset due to too large friction force when the moving block is reset leftwards under the action of the reset spring is avoided.

Drawings

FIG. 1 is a schematic overall structure of embodiment 1 of the present utility model;

fig. 2 is a perspective view of a first fixing mechanism according to embodiment 1 of the present utility model;

FIG. 3 is a schematic view of a sliding mechanism according to embodiment 1 of the present utility model;

FIG. 4 is a schematic view of the surface structure of a silica gel pad according to embodiment 1 of the present utility model;

description of the reference numerals: 1. a first fixing mechanism; 2. a second fixing mechanism; 201. a first clamping plate; 202. a second clamping plate; 3. a housing; 4. a notch; 5. a round hole; 6. a screw; 7. a moving block; 701. a cambered surface B; 8. a fixed block; 801. a cambered surface A; 9. a return spring; 10. a rotating block; 11. a sliding device; 12. a chute; 13. a groove; 14. a connecting plate; 15. a pulley; 16. a rotating shaft; 17. a limiting sucker group; 18. a trapezoid sucker A; 19. and a trapezoid sucker B.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1:

as shown in fig. 1, the hemodialysis line fixing device includes a first fixing mechanism 1 and a second fixing mechanism 2. The first fixing mechanism 1 comprises a square cavity shell 3, a moving block 7, a fixed block 8, a screw 6 and a return spring 9; the center of the upper side wall of the shell 3 is longitudinally provided with a linear notch 4, the notch 4 is communicated with the inner cavity of the shell 3, and the shell 3 is free of a front side wall and a rear side wall; a round hole 5 is formed in the center of the left side wall of the shell 3, the round hole 5 penetrates through the left side wall of the shell 3, and threads are formed in the inner wall of the round hole 5; the screw rod 6 penetrates through the round hole 5 and is in meshed rotary connection with the round hole 5 through threads, and the left end of the screw rod 6 is provided with a moving block 7; the reset spring 9 is arranged on the screw rod 6 in a circle and is fixed on the left inner wall of the shell 3 and the left surface of the moving block 7, and when the reset spring 9 is in a natural state, the rightmost end of the moving block 7 is positioned on the left side of the notch 4; the fixed block 8 is arranged at the right end inside the shell 3.

The second fixing mechanism 2 is of a clip structure and comprises a first clamping plate 201 and a second clamping plate 202; the first clamping plate 201 is horizontally arranged, and the left end of the first clamping plate 201 is fixedly connected with the outer wall of the right side of the shell 3; the second clamping plate 202 is obliquely arranged above the first clamping plate 201, and the right end of the first clamping plate 201 and the right end of the second clamping plate 202 are mutually attached in a natural state.

The utility model clamps the arteriovenous line into the cavity from the notch 4 above the first fixing mechanism 1, then pushes the moving block 7 by rotating the screw rod 6, and fixes the arteriovenous line between the moving block 7 and the fixed block 8. In this process, the tightness of the fixed arteriovenous line can be adjusted by rotating the screw 6, and the condition that the pipeline is excessively extruded and is fallen off does not occur. Moreover, the utility model has simple and exquisite design and convenient operation, can adjust the tightness through rotation, and can not cause misoperation.

In the embodiment, the width of the opening of the notch 4 is larger than or equal to the diameter of the orifice of the arterial and venous line, so that the arterial and venous line can be clamped into the cavity without being extruded.

In the embodiment, the second fixing mechanism 2 is connected with the first fixing mechanism 1 through a rotatable or telescopic device, so that the medical staff can conveniently adjust the fixing position and the fixing direction during use.

Preferably, the left side of the fixed block 8 is a cambered surface A801 recessed rightward, and the upper side, the lower side and the right side of the fixed block 8 are smooth planes, are attached to the inner wall of the housing 3 and are fixed on the inner wall of the housing 3. On one hand, the cambered surface is designed to be more fit with the shape of the pipeline, so that excessive extrusion is avoided; on the other hand, the fixing block 8 is fixedly attached to the right end inside the shell 3, so that the overall stability is improved.

Preferably, the moving block 7 has the same structure as the fixed block 8, the right side surface of the moving block 7 is a cambered surface B701 recessed leftwards, the upper side surface, the lower side surface and the left side surface of the moving block 7 are smooth planes, the moving block 7 is attached to the inner wall of the shell 3, and the moving block 7 and the fixed block 8 are symmetrically placed leftwards and rightwards. The two are symmetrically arranged, and the space formed in the middle is more fit with the shape of the pipeline, so that the pipeline is protected.

Preferably, a layer of medical silica gel pad is arranged on each of the cambered surface A801 and the cambered surface B701. On one hand, the device has certain elasticity and can protect a fixed arteriovenous vessel; on the other hand, the anti-slip device has a certain anti-slip effect and avoids the slipping phenomenon of the arterial and venous pipeline during fixation.

In the embodiment, when the embodiment is implemented, the surface of the medical silica gel pad can be integrally provided with a plurality of limiting sucker groups 17, each limiting sucker group comprises a trapezoidal sucker A18 and a trapezoidal sucker B19, and the trapezoidal sucker A18 and the trapezoidal sucker B19 have the same structure and are arranged in bilateral symmetry; the shorter bottom edges of the trapezoidal sucker A18 and the trapezoidal sucker B19 are arranged along the vertical direction and are close to each other. Can avoid the forward and backward sliding of the arteriovenous line after the first fixing mechanism 1 is clamped with the arteriovenous line.

Preferably, the left end of the screw rod 6 is fixedly provided with a rotating block 10, and the rotating block 10 is provided with a transverse groove 13, so that the screw rod 6 can be conveniently rotated by medical staff.

Preferably, the sliding device 11 is arranged at the center of the bottom side of the moving block 7, and the sliding device 11 comprises two longitudinal connecting plates 14 and a pulley 15; the upper ends of the two connecting plates 14 are fixedly connected to the lower surface of the moving block 7, the two connecting plates 14 are placed in parallel front and back, and through holes with the same size are formed near the bottom ends of the two connecting plates; a cylindrical rotating shaft 16 is fixedly arranged in the center of two sides of the pulley 15, and the outer diameter of the rotating shaft 16 is consistent with the inner diameter of the through hole; the pulley 15 is arranged between the two connecting plates 14 by means of two shafts 16. The sliding device 11 saves more labor in moving the moving block 7, and avoids the situation that the moving block 7 cannot be reset due to too large friction force when being reset leftwards under the action of the reset spring 9; on one hand, the astringent feeling during use is reduced, and on the other hand, the noise reduction effect is also achieved to a certain extent.

Preferably, the bottom of the inner side of the shell 3 is provided with a transverse chute 12, the position of the chute 12 is matched with the sliding track of a pulley 15, and the size of the pulley 15 is matched with the size of the chute 12, so that the whole structure is more compact.

Preferably, the shell 3, the movable block 7 and the fixed block 8 are all made of transparent materials, so that medical staff can observe the compression condition of the arteriovenous vessel.

In the specific implementation of the utility model, medical staff fixes the arterial and venous pipelines through the first fixing device 1 and fixes the second fixing mechanism 2 on the bed board or the bed sheet, thereby realizing the fixation of the blood permeable pipelines. Specifically, before using the utility model, the medical staff firstly rotates the rotating block 10 to enable the screw rod 6 to move leftwards, so that the moving block 7 is ensured to return to the leftmost end under the action of the return spring 9, and the notch 4 is not blocked. Then, the arterial and venous pipelines are placed into the square cavity shell 3 from the notch 4; then the rotating block 10 is rotated to enable the screw rod 6 to move rightwards, so that the moving block 7 is pushed to move rightwards and is slowly attached to the fixed block 8; in this process, the medical staff can combine the hand force feeling and observe the extrusion condition of the pipeline through the shell 3 to determine whether the arterial road is fixed and stable. If the fixed position is proper, the rotation of the rotary block 10 is stopped. Finally, the second fastening means 2 is fixed in place at the bedside or by pressing the first clamping plate 201 and the second clamping plate 202. When the patient is finished in dialysis and the device needs to be taken down, the medical staff only needs to reversely rotate the rotating block 10, and the moving block 7 can slide leftwards under the action of the reset spring 9. In addition, the bottom of the moving block 7 is also provided with a sliding device 11, and the resetting process of the moving block 7 is smoother.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. Hemodialysis pipeline fixing device, its characterized in that: comprises a first fixing mechanism and a second fixing mechanism;

the first fixing mechanism comprises a square cavity shell, a moving block, a fixed block, a screw rod and a reset spring; a linear notch is longitudinally formed in the center of the upper side wall of the shell, the notch is communicated with the inner cavity of the shell, and the shell is free of a front side wall and a rear side wall; a round hole is formed in the center of the left side wall of the shell, the round hole penetrates through the left side wall of the shell, and threads are formed in the inner wall of the round hole; the screw rod penetrates through the round hole and is in meshed rotary connection with the round hole through threads, and the moving block is arranged at the left end of the screw rod; the reset spring ring is arranged on the screw rod and is fixed on the left inner wall of the shell and the left surface of the moving block, and when the reset spring is in a natural state, the rightmost end of the moving block is positioned on the left side of the notch; the fixed block is arranged at the right end inside the shell;

2. The hemodialysis line fixture of claim 1, wherein: the left side of fixed block is right sunken cambered surface A, fixed block upside, downside and right flank are smooth plane, with the inner wall laminating of shell and all fix on the inner wall of shell.

3. The hemodialysis line fixture of claim 2, wherein: the movable block is identical to the fixed block in structure, the right side face of the movable block is a cambered surface B recessed leftwards, the upper side face, the lower side face and the left side face of the movable block are smooth planes and are attached to the inner wall of the shell, and the movable block is placed leftwards and rightwards symmetrically with the fixed block.

4. The hemodialysis line fixture of claim 3, wherein: and a layer of medical silica gel pad is arranged on the cambered surface A and the cambered surface B.

5. The hemodialysis line fixture of claim 1, wherein: the left end of the screw rod is fixedly provided with a rotating block, and the rotating block is provided with a transverse groove.

6. The hemodialysis line fixture of claim 1, wherein: the sliding device is arranged in the center of the bottom side of the moving block and comprises two longitudinal connecting plates and pulleys; the upper ends of the two connecting plates are fixedly connected to the lower surface of the moving block, the two connecting plates are placed in parallel front and back, and through holes with the same size are formed near the bottom ends of the two connecting plates; a cylindrical rotating shaft is fixedly arranged in the center of two sides of the pulley, and the outer diameter of the rotating shaft is consistent with the inner diameter of the through hole; the pulley is arranged between the two connecting plates in a penetrating way through the two rotating shafts.

7. The hemodialysis line fixture of claim 6, wherein: the bottom of the inner side of the shell is provided with a transverse chute, the position of the chute is matched with the sliding track of the pulley, and the size of the pulley is matched with the size of the chute.

8. The hemodialysis line fixture of claim 1, wherein: the shell, the movable block and the fixed block are all made of transparent materials.

9. The hemodialysis line fixture of claim 1, wherein: the second fixing mechanism is of a clip structure and comprises a first clamping plate and a second clamping plate; the first clamping plate is horizontally arranged, and the left end of the first clamping plate is fixedly connected with the outer wall of the right side of the shell; the second clamping plate is obliquely arranged above the first clamping plate, and the right end of the first clamping plate and the right end of the second clamping plate are mutually attached in a natural state.