CN210903513U

CN210903513U - Intervertebral height and pressure measurer

Info

Publication number: CN210903513U
Application number: CN201920727340.2U
Authority: CN
Inventors: 杨树龙; 戈朝晖; 梁思敏; 马荣; 陈振; 张建群; 刘晓印
Original assignee: Ningxia Medical University
Current assignee: Ningxia Medical University
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-07-03
Anticipated expiration: 2029-05-21

Abstract

The utility model belongs to the technical field of medical instrument, a intervertebral height, pressure measurement ware is related to. This caliber, including strutting the pincers body, height measurement mechanism and pressure measurement mechanism, height measurement mechanism includes the scale, the top of scale articulates on a holding rod of strutting the pincers body, strut and seted up the bar through-hole on another holding rod of pincers body, and the end of scale passes this bar through-hole, it has the height measurement scale to be carved with on the chi face of scale, pressure measurement mechanism includes gasbag and manometer, the gasbag is fixed in and struts on one of them holding rod of pincers body, the gasbag passes through the connecting pipe and is connected with the air inlet of manometer. The measurer can monitor the height and pressure of the spine of a patient in real time in the operation process, gives direct and exact data information to a main surgeon, is convenient for quickly and accurately selecting a proper interbody fusion cage, and reduces sequelae or complications generated to the patient.

Description

Intervertebral height and pressure measurer

Technical Field

The utility model belongs to the technical field of medical instrument, a intervertebral height, pressure measurement ware is related to.

Background

At present, the spine diseases such as lumbar disc herniation, spinal stenosis and lumbar degenerative lateral curvature are often treated by operation. When the interbody fusion cage needs to be used in the operation process, most of doctors select the fusion cage with proper height according to own experience and hand feeling in the operation, important data such as the height, pressure and the like of the intervertebral cannot be monitored in real time, and then the proper interbody fusion cage cannot be selected through quantitative standards and scales, so that doctors with lower annual capital costs are not properly treated due to lack of experience, a little discomfort or sequelae are caused to patients, and the experience of years of operation of high-tech doctors is wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a height between vertebras, pressure measurement ware can be in the intraoperative real-time supervision intervertebral height and pressure, the suitable interbody fusion cage of quick accurate selection of the doctor of being convenient for.

The utility model provides a technical scheme of above-mentioned technical problem does:

an intervertebral height and pressure measurer comprises an opening clamp body, a height measuring mechanism and a pressure measuring mechanism; the height measuring mechanism comprises a scale, the top end of the scale is hinged to one holding rod of the spreading clamp body, a strip-shaped through hole is formed in the other holding rod of the spreading clamp body, the tail end of the scale penetrates through the strip-shaped through hole, and height measuring scales are marked on the scale surface of the scale; the pressure measuring mechanism comprises an air bag and a pressure gauge, the air bag is fixed on one holding rod of the spreading clamp body, and the air bag is connected with an air inlet of the pressure gauge through a connecting pipe. The opening forceps are medical tools for opening the forceps mouth at the top end by tightening the two holding rods, and the height measuring mechanism and the pressure measuring mechanism are arranged on the opening forceps, so that the intervertebral height and the pressure are measured in real time and measured data are acquired in the operation process.

Furthermore, the body structure of the scale is an arc-shaped scale structure, so that the holding process is more convenient; a plurality of sawteeth which are continuously arranged are arranged on the side end face of the scale, and a tooth socket which is meshed with the sawteeth is arranged on the inner wall of the strip-shaped through hole, so that the scale can realize the fixation of the staying position of the scale through the meshing of the sawteeth and the tooth socket in the measuring process; the scale still includes the protective sheath, and the protective sheath wraps up in the end of scale, and the material of protective sheath can be rubber or plastics etc. has certain elasticity, plays the injury that the terminal of protection scale, reduction scale probably take place such as the fish tail of patient or doctor.

Furthermore, height measurement mechanism still includes the extension spring, and on the one end of extension spring was fixed in the holding rod that struts the pincers body mutually articulated with the scale, the other end was fixed in on the scale for at the in-process that the holding rod was tightened up, the extension spring can drive the better meshing of sawtooth and the tooth's socket of bar through-hole of scale.

Furthermore, the two outer surfaces of the opening forceps body at the forceps mouth are both convex arc structures which are close to the surface structure of the interbody fusion cage, so that the forceps mouth can be conveniently placed between the spines; the latticed tooth parts are arranged on the outer surfaces of the two convex arc structures at the forceps mouth of the spreading forceps body, friction is increased, the forceps mouth is prevented from sliding out of an intervertebral space, and the measuring process is more reliable. Because the shape structure of the outer surface of the forceps mouth is similar to that of the intervertebral fusion device, the measurement data of pressure and height in the operation process and the selection of the intervertebral fusion device are more convenient and the matching degree is higher.

Further, the parcel has the antiskid cover on the holding rod of the pincers body of strutting of not being fixed with the gasbag, and the material of antiskid cover rubber or plastics etc. in time, and its surface is provided with anti-skidding line, through setting up the antiskid cover, the frictional force that multiplicable doctor held avoids because the doctor hand is smooth the harmful effects who causes the operation.

The utility model has the advantages that the height and pressure measuring device for the intervertebral height and the pressure is arranged on the spreading pliers, so that the height and the pressure of the intervertebral of the spine of a patient can be monitored in real time in the operation process, and further, the direct and exact data information is provided for a main doctor and the convenient and timely recording is realized; the arc ruler structure enables the holding to be more convenient in the using process; the position of the scale is more fixed and the data is more accurate in the measuring process through the engagement of the saw teeth and the tooth grooves and the tension action of the tension spring; the shape and the structure of the forceps mouth are similar to those of the interbody fusion cage, so that a doctor can conveniently and quickly and accurately select a more appropriate interbody fusion cage; the safety of the measurer in the using process is further improved by arranging the protective sleeve and the anti-slip sleeve; in addition, by establishing statistical analysis data of the height and the pressure matched with the interbody fusion cage, a subsequent main doctor can quickly and accurately select a more appropriate interbody fusion cage according to the relevant data displayed by the measurer, and then sequelae or complications generated to a patient are reduced.

Drawings

FIG. 1 is a schematic structural view of the intervertebral height and pressure measuring device of the present invention;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

The codes in the figures are respectively: the novel combined pliers comprise a propping pliers body 1, a height measuring mechanism 2, a scale 2-1, height measuring scales 2-11, sawteeth 2-12, a tension spring 2-2, a protective sleeve 2-3, a pressure measuring mechanism 3, an air bag 3-1, a pressure gauge 3-2, a strip-shaped through hole 4, a tooth socket 4-1, a latticed tooth part 5 and an anti-skidding sleeve 6.

Detailed Description

As shown in fig. 1 and 2, an intervertebral height and pressure measuring instrument includes an expanding forceps body 1, a height measuring mechanism 2, and a pressure measuring mechanism 3.

The spreading forceps body 1 is a forceps with a spreading function, two outer surfaces of a forceps mouth are both convex arc structures, and the arc structures are provided with grid-shaped tooth parts 5, so that the grid-shaped tooth parts 5 on the arc surfaces are formed.

The height measuring mechanism 2 comprises a scale 2-1, a tension spring 2-2 and a protective sleeve 2-3, the body structure of the scale 2-1 is an arc scale structure, the top end of the scale 2-1 is hinged on one holding rod of the spreading forceps body 1, the other holding rod of the spreading forceps body 1 is provided with a strip-shaped through hole 4, the tail end of the scale 2-1 penetrates through the strip-shaped through hole 4, the protective sleeve 2-3 is wrapped on the tail end of the scale 2-1 to further protect the scale 2-1, the upper side end surface of the scale 2-1 is provided with a plurality of sawteeth 2-12 which are continuously arranged, the inner wall of the upper end of the strip-shaped through hole 4 is provided with a tooth groove 4-1 which is meshed with the sawteeth 2-12, meanwhile, one end of the tension spring 2-2 is fixed on the holding rod of the spreading forceps body 1 which is hinged with the scale 2-1, the other end of the rod is fixed on the scale surface of the scale 2-1, and the tension spring 2-2 is integrally positioned above the scale 2-1, namely above the tooth surface of the sawtooth 2-12, so that in the process of tightening the holding rod, the tail end of the scale 2-1 is continuously away from the strip-shaped through hole 4 and is fixed step by step through the meshing of the sawtooth 2-12 and the tooth socket 4-1, meanwhile, the meshing of the sawtooth 2-12 and the tooth socket 4-1 is more fastened through the tension force of the tension spring 2-2, and the scale 2-1 is further stably fixed in the strip-shaped through hole 4, so that the measured data is more accurate, and the scale 2-1 is an arc scale, so that the rod is more beneficial to being held by doctors, more saving the holding force and more attractive; in addition, the scale surface of the proportional scale 2-1 is carved with a height measurement scale 2-11 for displaying the relevant data of the patient intervertebral height during the operation, and the initial value of the height measurement scale 2-11 is located at the position corresponding to the strip-shaped through hole 4 on the scale surface of the proportional scale 2-1, i.e. the value of the height measurement scale 2-11 is gradually increased from the tail end of the proportional scale 2-1 to the top end.

The pressure measuring mechanism 3 comprises an air bag 3-1 and a pressure gauge 3-2, the air bag 3-1 is fixed on one holding rod of the spreading forceps body 1, and the air bag 3-1 is connected with an air inlet of the pressure gauge 3-2 through a connecting pipe; the pressure is formed in the air bag 3-1 by compressing the air bag 3-1, and then the pressure is transmitted to the pressure gauge 3-2 through the connecting pipe and displayed, so that the intervertebral pressure of the patient in the operation process is measured and displayed.

In addition, the holding rod of the spreading forceps body 1 which is not fixed with the air bag 3-1 is wrapped with an anti-slip sleeve 6.

The utility model discloses the work process of intervertebral height, pressure measurement ware is, in the operation process, the doctor inserts the pincers mouth of this measurement ware into patient's intervertebral and makes the pincers mouth expand through the mode of holding tightly two holding rods that strut pincers body 1, hug closely on the opposite face of patient's adjacent centrum endplate of backbone; along with the tightening of the holding rod and the expansion of the clamp mouth, the contact position of the proportional scale 2-1 and the strip-shaped through hole 4 and the numerical value of the pressure gauge 3-2 are continuously changed, and when the clamp mouth is expanded to a proper position, height measurement data on the scale surface of the proportional scale 2-1 and pressure measurement data on the pressure gauge 3-2 are recorded.

In the process of various operations (such as OLIF, TLIF, PLIF and the like) for placing the interbody fusion cage on the spine at the present stage, a senior medical practitioner carries out measurement of the interbody pressure according to the determined height of the interbody fusion cage by using a measurer before determining to place the selected interbody fusion cage according to own hand feeling and experience and gives corresponding records; after operation, the same disease and the case of operation are periodically revisited and the clinical curative effects such as intervertebral height, fusion cage sinking and the like are observed, then the related statistical analysis is carried out by combining the conditions such as the body weight index, the osteoporosis degree and the like of the preoperative patient and the intervertebral height and the pressure measured in the operation, and the corresponding conclusion is obtained, for example, the relationship between the intervertebral pressure and the intervertebral height, the body weight index and the osteoporosis degree is obtained, so that orthopaedics doctors in the future can select the intervertebral fusion cage with more proper height through the preoperative condition of the patient and the specific intervertebral pressure measured in the operation before selecting the intervertebral fusion cage, and the adverse sequelae and the complications generated to the patient are reduced.

Claims

1. An intervertebral height and pressure measurer is characterized by comprising an expansion clamp body (1), a height measuring mechanism (2) and a pressure measuring mechanism (3);

the height measuring mechanism (2) comprises a scale (2-1), the top end of the scale (2-1) is hinged to one holding rod of the spreading clamp body (1), a strip-shaped through hole (4) is formed in the other holding rod of the spreading clamp body (1), the tail end of the scale (2-1) penetrates through the strip-shaped through hole (4), and height measuring scales (2-11) are engraved on the scale surface of the scale (2-1);

the pressure measuring mechanism (3) comprises an air bag (3-1) and a pressure gauge (3-2), the air bag (3-1) is fixed on one holding rod of the spreading clamp body (1), and the air bag (3-1) is connected with an air inlet of the pressure gauge (3-2) through a connecting pipe.

2. The intervertebral height and pressure measurer as claimed in claim 1, wherein the body structure of the scale (2-1) is an arc-shaped scale structure.

3. The intervertebral height and pressure measuring instrument as claimed in claim 2, wherein a plurality of saw teeth (2-12) are arranged on the side end surface of the scale (2-1) in series, and the inner wall of the strip through hole (4) is provided with tooth grooves (4-1) engaged with the saw teeth (2-12).

4. The intervertebral height and pressure measurer as claimed in claim 3, wherein the height measuring mechanism further comprises a tension spring (2-2), one end of the tension spring (2-2) is fixed on a holding rod of the spreading forceps body (1) hinged with the scale (2-1), and the other end is fixed on the scale (2-1).

5. The intervertebral height and pressure measuring device as claimed in any one of claims 1 to 4, characterized in that the two outer surfaces of the spreading forceps body (1) at the forceps mouth are both convex circular arc structures.

6. The intervertebral height and pressure measuring device as claimed in claim 5, characterized in that the two outer surfaces of the convex arc structures at the mouth of the spreading forceps body (1) are provided with grid-shaped teeth parts (5).

7. The intervertebral height and pressure measurer according to any one of claims 1 to 4, wherein the scale (2-1) further comprises a protective sleeve (2-3), and the protective sleeve (2-3) is wrapped on the tail end of the scale (2-1).

8. The intervertebral height and pressure measurer according to any one of claims 1 to 4, wherein the grip of the distracting forceps body (1) to which the air bag (3-1) is not fixed is wrapped with an anti-slip sleeve (6).