CN215458564U

CN215458564U - Puncture dilator assembly for assisting vertebroplasty

Info

Publication number: CN215458564U
Application number: CN202121438826.8U
Authority: CN
Inventors: 陈林
Original assignee: Suzhou Pak Kang Technology Co ltd
Current assignee: Suzhou Pak Kang Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-01-11
Anticipated expiration: 2031-06-28

Abstract

The utility model belongs to the technical field of medical instruments and discloses a puncture dilator assembly for assisting vertebroplasty, which comprises a dilator outer handle and a dilator inner handle, wherein a movable rod is movably sleeved at the left end inside the dilator outer handle, a spring and a small hollow cylinder are fixedly installed at the top of a limiting block, the spring is positioned in the small hollow cylinder, a small spring is fixedly installed at the tail end of a limiting button, and the structures of the left end and the right end of a middle axial surface of the dilator outer handle are consistent. The utility model can achieve the beneficial effect of stable separation effect through the movable rod, the limiting block, the pressing rod and the like, at the moment, the spring is extruded and moves upwards, the movable rod moves upwards, the limiting button loses the limiting effect at the moment, so that the movable rod moves upwards, at the moment, the pressing rod can be pulled and pulled outwards to take out the movable rod, at the moment, the outer handle of the expander can be separated from the inner handle of the expander, and the purpose of stable separation effect is achieved.

Description

Puncture dilator assembly for assisting vertebroplasty

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a puncture dilator component for assisting vertebroplasty.

Background

Along with the increasingly serious phenomenon of the aging in China, the adverse symptoms such as osteoporosis are more and more, aiming at patients with osteoporosis, doctors generally adopt a vertebroplasty method to treat the patients, the vertebroplasty is mainly applied to patients with osteoporosis and thoracolumbar vertebral compression fracture, because the thoracolumbar vertebral compression fracture causes obvious thoracolumbar back pain and limited movement, the old cannot get up or get up, the vertebroplasty is popular at present, the effective minimally invasive surgery mode is applied to the diseases, the pain can be quickly relieved, the purpose of healing is achieved, the surgery is generally performed by local anesthesia, the patients take prone positions, the surgeons use two puncture needles to penetrate the vertebral bodies, then bone cement is injected into the vertebral bodies along dilator cannulas, the operation time is within 15 minutes, the bone cement can become hard, the pain is significantly reduced.

In the process of vertebroplasty, because the puncture needle needs to be removed after penetrating into the skin and the vertebral bone, the existing technology is to spirally sleeve the part with the puncture needle into the dilator, which results in that a certain time is consumed in the removal process and the operation is very troublesome for the operator, thus causing inconvenience for the doctor to perform the operation.

When the puncture needle punctures the skin of a patient, blood seeps out, which causes inconvenience for a doctor to perform a follow-up operation, and if the blood outflow is not processed in time, inconvenience is also caused to a person who performs an operation in a lifetime.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a puncture dilator assembly for assisting vertebroplasty, which has the advantages of stable separation effect and capability of treating oozing blood.

In order to achieve the purpose, the utility model provides the following technical scheme: a puncture dilator assembly for assisting vertebroplasty comprises an outer dilator handle and an inner dilator handle, wherein a movable rod is movably sleeved at the left end inside the outer dilator handle, a limiting block is fixedly arranged at the bottom of the left end of the inner dilator handle, a spring and a small hollow cylinder are fixedly arranged at the top of the limiting block, the spring is positioned in the small hollow cylinder, a semicircular groove is formed in the left end of the top of the outer dilator handle, a limiting button is movably sleeved at the upper end of the movable rod, a small spring is fixedly arranged at the tail end of the limiting button, the tail end of the small spring is fixedly arranged with the front side inside the movable rod, the structures of the left end and the right end of a middle axial surface of the outer dilator handle are consistent, the movable rod moves downwards by pressing the pressing rod, the limiting button retracts into the movable rod, the spring is extruded and moves upwards, the movable rod moves upwards, the limiting button loses the limiting effect at the moment, the movable rod moves upwards, the pressing rod can be pulled at the moment, the pressing rod is pulled outwards to take the movable rod out, and the outer handle of the expander can be separated from the inner handle of the expander at the moment.

According to a preferable technical scheme, an expander sleeve rod is fixedly installed inside the expander inner handle and penetrates through the bottom end inside the expander inner handle, two ends of the expander sleeve rod are not capped, a movable ring is movably sleeved on the periphery of the expander sleeve rod, the interior of the movable ring is of a hollow structure, a limit ring is movably sleeved on the periphery of the expander sleeve rod and is located below the movable ring, a clamping ring is arranged at the outer end of the top of the limit ring, the width of the clamping ring is consistent with the thickness of the outer end of the movable ring, a sanitary cotton is set to be fully filled in the movable ring, then the movable ring and the limit ring are clamped through the clamping ring, sanitary cotton extends out of the interior of the limit ring, and the outer side of the sanitary cotton is clamped and limited by the movable ring and the limit ring.

As a preferred technical scheme, the top end of the interior of the expander outer handle is fixedly provided with movable rods, the number of the movable rods is seven, the movable rods are uniformly and equidistantly arranged in the support rod, the bottom end of each movable rod is fixedly arranged with the bottom end of the interior of the expander outer handle, the bottom of the expander outer handle is fixedly provided with a puncture needle, the puncture needle is movably sleeved in the expander sleeve rod, the tail end of the puncture needle extends out of the bottom of the expander sleeve rod, the movable rods can stabilize the structure of a hollow area in the expander outer handle, the tail end of the puncture needle extends out to ensure that the puncture needle can reach the human vertebra when the expander outer handle is stressed and cannot be easily damaged due to external force.

As a preferable technical scheme of the utility model, the top ends of the two movable rods are fixedly provided with the pressing rods, the bottom of the outer handle of the expander is matched with the top of the inner handle of the expander, the two movable rods can move downwards simultaneously when the pressing rods are pressed, and the uniform force applied to the movable rods is ensured, thereby achieving the purpose of facilitating the use of an operator.

As a preferable technical scheme of the utility model, the inside of the limit ring is fixedly provided with three support bars which are uniformly and equidistantly surrounded in the limit ring, the support bars can ensure the stability of the hollow structure in the limit ring, and simultaneously the support bars can effectively prevent the sanitary napkin from falling off, which is equivalent to a limit effect on the sanitary napkin.

As a preferable technical scheme of the utility model, the radius value of the cross section of the puncture needle is consistent with the radius value of the inside of the cross section of the dilator loop bar, so that the dilator loop bar can effectively limit the puncture needle when the puncture needle moves inside the dilator loop bar, the puncture needle cannot deviate in the moving process, and the operation is convenient.

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

1. the utility model can achieve the beneficial effect of stable separation effect through the movable rod, the limiting block, the pressing rod and the like, when the puncture needle is inserted into the bone, the outer handle of the dilator needs to be separated from the inner handle of the dilator, the pressing rod is pressed downwards, the movable rod moves downwards, the limiting button retracts towards the inner part of the movable rod, the spring is extruded and moves upwards, the movable rod moves upwards, the limiting button loses the limiting function, the movable rod moves upwards, the pressing rod can be pulled and pulled outwards to take out the movable rod, the outer handle of the dilator can be separated from the inner handle of the dilator, and the purpose of stable separation effect is achieved.

2. The utility model can achieve the purpose of treating the oozing blood through the movable ring, the limiting ring, the clamping ring and the like, when the puncture needle punctures the body of a person, the blood can seep out of the place puncturing the skin, the sanitary cotton is filled into the movable ring fully, then the movable ring and the limiting ring are clamped through the clamping ring, the sanitary cotton extends out of the inner part of the limiting ring, the sanitary cotton is limited by the movable ring and the limiting ring in a clamping way because the outer side of the sanitary cotton is limited by the movable ring and the limiting ring, the bottom of the sanitary cotton can be blocked by the supporting strip of the limiting ring, the sanitary cotton can be ensured not to fall off, at the moment, the movable ring and the limiting ring are moved to the area puncturing the skin together, the seeping blood can be effectively treated and blocked, the operation is convenient, and the purpose of treating the oozing blood is achieved.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic view of the position relationship between the movable ring and the stop ring according to the present invention;

FIG. 4 is a schematic view of the internal structure of the limiting block of the present invention;

FIG. 5 is an enlarged view taken at A of FIG. 2 according to the present invention;

FIG. 6 is an enlarged view of the utility model at B of FIG. 4;

FIG. 7 is an enlarged view of the utility model at C of FIG. 4.

In the figure: 1. an expander outer handle; 2. a support bar; 3. a movable rod; 4. an expander sleeve; 5. an expander inner handle; 6. a limiting block; 7. a movable ring; 8. a limiting ring; 9. a pressing lever; 10. puncturing needle; 11. a spring; 12. a limit button; 13. a snap ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 7, the utility model provides a puncture dilator assembly for assisting vertebroplasty, which comprises a dilator outer handle 1 and a dilator inner handle 5, wherein a movable rod 3 is movably sleeved at the left end inside the dilator outer handle 1, a limiting block 6 is fixedly installed at the bottom of the left end of the dilator inner handle 5, a spring 11 and a small hollow cylinder are fixedly installed at the top of the limiting block 6, the spring 11 is positioned in the small hollow cylinder, a semicircular groove is formed at the left end of the top of the dilator outer handle 1, a limiting button 12 is movably sleeved inside the upper end of the movable rod 3, a small spring is fixedly installed at the tail end of the limiting button 12, the tail end of the small spring is fixedly installed with the front side inside the movable rod 3, the structures at the left end and the right end of the axial surface of the dilator outer handle 1 are consistent, the movable rod 3 moves downwards by pressing the pressing rod 9 downwards, the limiting button 12 retracts towards the inside of the movable rod 3, at this moment, the spring 11 is extruded and moves upwards, the movable rod 3 moves upwards, the limiting button 12 loses the limiting effect at this moment, the movable rod 3 moves upwards, the pressing rod 9 can be pulled at this moment, the pressing rod 9 is pulled outwards to take out the movable rod 3, and the outer handle 1 of the expander can be separated from the inner handle 5 of the expander at this moment.

Wherein, the inside fixed mounting of handle 5 has expander loop bar 4 and expander loop bar 4 to run through the inside bottom of handle 5 in the expander, the both ends of expander loop bar 4 are not sealed, the peripheral activity of expander loop bar 4 has cup jointed loose ring 7, the inside of loose ring 7 is hollow structure, the peripheral activity of expander loop bar 4 has cup jointed spacing ring 8 and is located the below of loose ring 7, joint ring 13 has been seted up to the outer end at spacing ring 8 top, the width value of joint ring 13 is unanimous with the thickness value of loose ring 7 outer end, set for and go into the inside of loose ring 7 with sanitary tampon and fully fill, pass through joint ring 13 block with loose ring 7 and spacing ring 8 again, sanitary tampon extends from the inside of spacing ring 8 this moment, the sanitary tampon outside is pressed from both sides tightly spacing by loose ring 7 and spacing ring 8.

Wherein, the inside top fixed mounting of outer handle 1 of expander has movable rod 3, the quantity of movable rod 3 is seven and the inside at bracing piece 2 of even equidistance's range, the bottom of each movable rod 3 all with the inside bottom fixed mounting of outer handle 1 of expander, the bottom fixed mounting of outer handle 1 of expander has pjncture needle 10, pjncture needle 10 activity cup joints the bottom that extends expander loop bar 4 in the inside of expander loop bar 4 and pjncture needle 10, movable rod 3 can make the inside hollow region stable in structure of outer handle 1 of expander, make outer handle 1 of expander when the atress, be difficult for receiving destruction because of external force, the end of pjncture needle 10 is extended and can be guaranteed to puncture and reach people's vertebra department.

Wherein, the top fixed mounting of two movable rods 3 has according to depression bar 9, and the top looks adaptation of handle 5 in the bottom of the outer handle 1 of expander and the expander can make two movable rods 3 simultaneously move down when pressing according to depression bar 9, guarantees simultaneously that the power that movable rod 3 received is even, reaches the purpose that makes things convenient for the operator to use.

Wherein, the inside fixed mounting of spacing ring 8 has the support bar, and the quantity of support bar is three and even equidistance encircle in the inside of spacing ring 8, and the support bar can guarantee the firm of the inside hollow structure of spacing ring 8, and the support bar can effectively separate the cotton wool simultaneously and drop, is equivalent to giving a limiting displacement of cotton wool.

Wherein, the radius value of pjncture needle 10 cross section is unanimous with the inside radius value of expander loop bar 4 cross section, sets up like this and can make when pjncture needle 10 is in the inside removal of expander loop bar 4, and expander loop bar 4 can be effectual carries out a limiting displacement to pjncture needle 10 for the condition of skew can not appear in the removal in-process, makes things convenient for the operation to go on.

The working principle and the using process of the utility model are as follows:

after the puncture needle 10 is inserted into a vertebra, the dilator outer handle 1 and the dilator inner handle 5 need to be separated at the moment, the pressing rod 9 is pressed downwards, the movable rod 3 moves downwards, the limiting button 12 retracts towards the inside of the movable rod 3, the spring 11 is extruded and moves upwards at the moment, the movable rod 3 moves upwards, the limiting button 12 loses the limiting function at the moment, the movable rod 3 moves upwards, the pressing rod 9 can be pulled at the moment, the pressing rod 9 is pulled outwards to be taken out of the movable rod 3, and the dilator outer handle 1 and the dilator inner handle 5 can be separated at the moment;

when pjncture needle 10 puncture people's health, can be in the place of puncturing skin oozing blood, go into the inside of activity ring 7 with the sanitary towel and fully fill, pass through joint ring 13 block with activity ring 7 and spacing ring 8 again, the sanitary towel extends from the inside of spacing ring 8 this moment, the sanitary towel is because the outside is pressed from both sides tightly spacing by activity ring 7 and spacing ring 8, the bottom can be kept off by the support bar of spacing ring 8, can guarantee that the sanitary towel can not drop, move the region to puncturing skin with activity ring 7 and spacing ring 8 together this moment, can effectively guarantee to handle the separation with the blood that oozes, make things convenient for the operation to go on.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a supplementary puncture dilator subassembly that uses of vertebroplasty, includes outer handle (1) of expander and interior handle (5) of expander, its characterized in that: the inside left end activity of the outer handle of expander (1) has cup jointed movable rod (3), the bottom fixed mounting of handle (5) left end has stopper (6) in the expander, the top fixed mounting of stopper (6) has spring (11) and little hollow cylinder and spring (11) to be located little hollow cylinder, the half slot has been seted up to the left end at the outer handle of expander (1) top, stop button (12) have been cup jointed in the inside activity of movable rod (3) upper end, the terminal fixed mounting of stop button (12) has little spring, the terminal of little spring and the inside positive fixed mounting of movable rod (3), the structure at both ends is unanimous about the axial surface in the outer handle of expander (1).

2. A puncture dilator assembly for aiding vertebroplasty according to claim 1, wherein: the inside fixed mounting of handle (5) has expander loop bar (4) and expander loop bar (4) to run through the inside bottom of handle (5) in the expander in handle (5), the both ends of expander loop bar (4) are not closed a top, the peripheral activity of expander loop bar (4) has cup jointed loose ring (7), the inside of loose ring (7) is hollow structure, the peripheral activity of expander loop bar (4) has cup jointed spacing ring (8) and is located the below of loose ring (7), joint ring (13) have been seted up to the outer end at spacing ring (8) top, the width value of joint ring (13) is unanimous with the thickness value of loose ring (7) outer end.

3. A puncture dilator assembly for aiding vertebroplasty according to claim 1, wherein: the inside top fixed mounting of outer handle of expander (1) has movable rod (3), the quantity of movable rod (3) is seven and even equidistance the inside of arranging in bracing piece (2), each the bottom of movable rod (3) all with the inside bottom fixed mounting of outer handle of expander (1), the bottom fixed mounting of outer handle of expander (1) has pjncture needle (10), pjncture needle (10) activity cup joints the bottom that extends expander loop bar (4) in the inside of expander loop bar (4) and pjncture needle (10).

4. A puncture dilator assembly for aiding vertebroplasty according to claim 1, wherein: two the top fixed mounting of movable rod (3) has according to depression bar (9), the top looks adaptation of handle (5) in the bottom and the expander of outer handle (1) of expander.

5. A puncture dilator assembly for aiding vertebroplasty according to claim 2, wherein: the inside fixed mounting of spacing ring (8) has the support bar, the quantity of support bar is three and even equidistance encircle the inside at spacing ring (8).

6. A puncture dilator assembly for aiding vertebroplasty according to claim 3, wherein: the radius value of the cross section of the puncture needle (10) is consistent with the radius value of the inner part of the cross section of the dilator loop bar (4).