CN208958088U - Bone mechanical performance measuring device and reference probe - Google Patents

Abstract

The utility model provides a kind of bone mechanical performance measuring device and reference probe.The reference probe includes needle body, axial direction in needle body along the needle body offers through hole, needle body has a first end and a second end, it is in the tip of circular conical surface that the end of the first end of needle body, which has side, and the cross section at tip is in gradually-reducing shape by the direction of second end to first end, and the tip of needle body has planar end face, the circumferential direction of the front at tip offers several openings, and adjacent two open space is arranged.The tip that side is in circular conical surface is arranged by the first end in needle body for the utility model, to facilitate insertion human body；And planar end face is set at the tip of needle body, to when needle body is inserted into human body, the end face at tip can resist bone surface, without being inserted into bone, bone damage is avoided, also avoids the detection for influencing measurement probe, while being arranged in the front at tip and being open, tip can be made preferably to be located in bone surface, anti-sliding stop.

Description

Bone mechanical performance measuring device and reference probe

Technical field

The utility model belongs to field of medical technology, is to be related to a kind of reference probe and use the reference more specifically The bone mechanical performance measuring device of probe.

Background technique

Bone is the important component of organization of human body, and the quality of bone refers to resist the ability of fracture.For bone The measurement of risk is rolled over, bone density is an extremely important parameter.But studies have shown that bone density can not reliably and effectively predict bone The risk of folding.Clinical practice shows that a large amount of high risk fracture cases have been sieved in skeleton density test leakage.Bone is by mineral and organic matter structure At, to the measurement of bone be divided into three aspect: the density of bone, the structure of bone and mechanical performance (Chavassieux, the Seeman et of bone al.2007).Wherein the density of bone and the structure of bone are generally measured by dual-energy x-ray absorption equipment (DEXA) and CT respectively.Bone is close Degree and bone structure can not reflect the quality of bone comprehensively, and the mechanical performance of bone can provide more fully important information.In bone Mechanical performance parameter in, bone Young's modulus is a parameter that is the most frequently used and can most reacting risk of bone fracture.Therefore, how Accurately become the key of problem in people's in-vivo measurement bone Young's modulus.Current device measures bone Young's modulus, usually logical It crosses setting reference probe to be pressed on bone, then measurement probe is supported into bone, pass through displacement sensor and force sensor measuring Probe is inserted into bone depth and pressure, to obtain bone stress strain data accordingly, and calculates the Young's modulus of bone.Due to ginseng It examines probe and needs to be inserted into human body, and measure in probe insertion reference probe, be inserted into human body, the front end one of reference probe for convenience As be cut into the inclined tip in one side, form the needle head structure for being similar to syringe；But this reference probe is easily pierced into bone In bone, and make bone damage, also will affect the accuracy of measurement probe in detecting.

Utility model content

The purpose of this utility model is to provide a kind of reference probes, easy to solve reference probe existing in the prior art The problem of being pierced into bone, and make bone damage, also will affect the accuracy of measurement probe in detecting.

In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of reference probe, including needle body, Axial direction in the needle body along the needle body offers through hole, and the cross section of the needle body is in circular ring shape, and the needle body has First end and second end, the first end and the second end are respectively the both ends of the needle body length direction, and the of the needle body It is in the tip of circular conical surface that the end of one end, which has side, and the cross section at the tip is by the second end to the first end Direction is in gradually-reducing shape, and the tip of the needle body has planar end face, and the circumferential direction of the front at the tip offers several Opening, and adjacent two open space is arranged.

Further, several opening perimeter array distributions are in the front at the tip.

Further, the opening is 3-8.

Further, the end face at the tip is equipped with the embossed structure for increasing the surface roughness.

Further, the angular range of the axis of the side at the tip and the needle body is 4-8 degree.

Further, each opening is V-shaped.

Further, the angular range between the two sidewalls of each opening is 8-12 degree.

Further, the second end of the needle body is fixed with connector, offers in the connector and runs through described in connection The aperture in hole, the through hole and the aperture are coaxial.

Further, the connector is cylindrical, and the connector has bottom cover close to one end of the needle body, described Needle body is connected with the bottom cover, and the aperture is located in the bottom cover.

The beneficial effect of reference probe provided by the utility model is: compared with prior art, the utility model passes through At the tip that the first end setting side of needle body is in circular conical surface, to facilitate insertion human body；And it is arranged at the tip of needle body planar End face, thus by needle body be inserted into human body in when, the end face at tip can resist bone surface, without be inserted into bone in, keep away Exempt from bone damage, also avoids the detection for influencing measurement probe, while being arranged in the front at tip and being open, tip can be made better It is located in bone surface, anti-sliding stop.

The another object of the utility model is to provide bone mechanical performance measuring device, including reference is visited as described above Needle.

The bone mechanical performance measuring device of the utility model has used above-mentioned reference probe, it can facilitate insertion human body, It is not easy to be inserted into bone again, avoids bone damage, reduce the influence to measurement probe, and then measurement accuracy can be improved.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is the perspective structure schematic diagram of reference probe provided by the embodiment of the utility model；

Fig. 2 is the structural schematic diagram one of reference probe provided by the embodiment of the utility model；

Fig. 3 is the schematic view of the front view of reference probe provided by the embodiment of the utility model.

Wherein, each attached drawing main mark in figure:

100- reference probe；10- needle body；11- first end；12- second end；13- through hole；The tip 14-；The end face 141-； 142- opening；21- connector；211- bottom cover；212- aperture.

Specific embodiment

In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein It applies example to be only used to explain the utility model, is not used to limit the utility model.

It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element On one element or indirectly on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined." several " are meant that one or more, unless otherwise clearly specific limit It is fixed.

In the description of the present invention, it should be understood that term " center ", " length ", " width ", " thickness ", The orientation of the instructions such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" or Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, Rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, because This should not be understood as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements or the interaction relationship of two elements.For those of ordinary skill in the art and Speech, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.

Also referring to Fig. 1 to Fig. 3, now reference probe 100 provided by the utility model is illustrated.The reference is visited Needle 100, including needle body 10, when in use, needle body 10 can be inserted in human body.Axial direction in needle body 10 along the needle body 10 offers Through hole 13, and the cross section of needle body 10 is in circular ring shape, can be inserted in through hole 13 to measure probe, makes reference probe 100 protection probes, while avoiding influence of the human cell tissue to measurement probe.Needle body 10 has first end 11 and second End 12, first end 11 and second end 12 are respectively the both ends of 10 length direction of needle body, and the first end 11 of needle body 10 has side In the tip 14 of circular conical surface, the cross section at tip 14 is in gradually-reducing shape by the direction of second end 12 to first end 11, consequently facilitating will Needle body 10 is inserted into human body.And the tip 14 of needle body 10 has planar end face 141, through hole 13 is located in end face 141 Portion.When needle body 10 to be inserted into human body, the end face 141 at tip 14 can resist bone surface, without being inserted into bone, avoid Bone damage.The circumferential direction of the front at tip 14 offers several openings 142, and the 142 interval setting of adjacent two opening, to make point The front at end 14 forms several dentalations, so that needle body 10 is inserted into human body, tip 14 can preferably be located in bone surface, Anti- sliding stop.In the present embodiment, needle body 10 is direction from front to back by first end 11 to the direction of second end 12, then tip 14 Front refer in particular to lean on one section of proximal end face 141 on tip 14.

Reference probe 100 provided by the utility model, compared with prior art, the utility model pass through the of needle body 10 The tip 14 that side is in circular conical surface is arranged in one end 11, to facilitate insertion human body；And it is arranged at the tip of needle body 10 14 planar End face 141, so that the end face 141 at tip 14 can resist bone surface, without being inserted into bone when needle body 10 to be inserted into human body In bone, bone damage is avoided, also avoids the detection for influencing measurement probe, while in the front at tip 14 setting opening 142, it can be with Tip 14 is set preferably to be located in bone surface, anti-sliding stop.

Further, also referring to Fig. 1 to Fig. 3, one kind as reference probe 100 provided by the utility model is specific Embodiment, 142 circumference array of several openings are distributed in the front at tip 14, to keep the length and width for each tooth to be formed equal, make 14 circumferential strength of tip of the needle body 10 is consistent, and makes 14 front circumferential direction uniform force of tip.

Further, also referring to Fig. 1 to Fig. 3, one kind as reference probe 100 provided by the utility model is specific Embodiment, opening 142 are 3-8.The structure can guarantee the end face 141 at tip 14 part between adjacent two opening 142 Area avoids in use, tip 14 is inserted into bone, while making tip 14 can be with good location in bone surface again.Preferably, Opening 142 is 6.

Further, also referring to Fig. 1 to Fig. 3, one kind as reference probe 100 provided by the utility model is specific Embodiment, each opening 142 are V-shaped.To facilitate processing, while annular dentation knot preferably can be formed in the front end at tip 14 Structure.

Further, also referring to Fig. 1 to Fig. 3, one kind as reference probe 100 provided by the utility model is specific Embodiment, respectively the angular range between the two sidewalls of opening 142 is 8-12 degree, so as to the depth of the opening 142 of production, and is made Opening 142 has biggish width at end face 141, so that tip 14 is located in bone surface.Preferably, the two of each opening 142 Angle between side wall is 10 degree.

Further, the end face 141 at tip 14 is equipped with the embossed structure for increasing the surface roughness.End face 141 is carried out Roughness increase processing, with guarantee when measure probe motion, reference probe 100 its be not easy and bone surface generate slide.

Further, also referring to Fig. 1 to Fig. 3, one kind as reference probe 100 provided by the utility model is specific Embodiment, the angular range of the axis of the side and needle body 10 at tip 14 are 4-8 degree.The structure can make the tip of needle body 10 14 sectional area is gently become larger by the direction at its end face 141 to 10 middle part of needle body, so that needle body 10 be allow more to be smoothly inserted into Human body.Preferably, the angle of the axis of the side at tip 14 and needle body 10 is 5 degree, had both facilitated needle body 10 being inserted into human body, simultaneously Also facilitate processing, also guarantee the intensity at 10 tip 14 of needle body.

Further, also referring to Fig. 1 to Fig. 3, one kind as reference probe 100 provided by the utility model is specific Embodiment, the range of 10 outer diameter of needle body are 0.6-1mm, to guarantee that needle body 10 can be convenient insertion human body, and are reduced to human body Injury, while having good intensity.Preferably, 10 outer diameter of needle body is 0.7mm.

Further, also referring to Fig. 1 to Fig. 3, one kind as reference probe 100 provided by the utility model is specific Embodiment, the diameter of through hole 13 are the 1/3-5/7 of 10 outer diameter of needle body.The structure can make through hole 13 side wall have compared with Big thickness to guarantee the intensity of needle body 10, while can guarantee the internal diameter of through hole 13, can be inserted to measure probe and pass through In perforation 13.Preferably, the diameter of through hole 13 is 10 outer diameter 3/7 of needle body.

Further, also referring to Fig. 1 to Fig. 3, one kind as reference probe 100 provided by the utility model is specific Embodiment, the degree of needle body 10 are that range is 8-15mm.To guarantee that needle body 10 has good intensity, while needle body 10 can also be made After in insertion human body, bone surface can be arrived at.Preferably, the length of needle body 10 is 10mm.

Further, also referring to Fig. 1 to Fig. 3, one kind as reference probe 100 provided by the utility model is specific Embodiment, the second end 12 of needle body 10 are fixed with connector 21, and the aperture of connection through hole 13 is offered in connector 21 212, through hole 13 and aperture 212 are coaxial.Connector 21 is set, is connected with facilitating with external component, in order to fix the reference Probe 100.

Further, also referring to Fig. 1 to Fig. 3, one kind as reference probe 100 provided by the utility model is specific Embodiment, connector 21 is cylindrical, and connector 21 has bottom cover 211, needle body 10 and bottom cover 211 close to one end of needle body 10 It is connected, aperture 212 is located in bottom cover 211.The structure during installation, can be by 21 sets of connector on external component, connection side Just.In some other embodiment, connector 21 can also be cylindrical, and screw thread is arranged in the outer surface of connector 21, in order to To be connected through a screw thread.

Further, also referring to Fig. 1 to Fig. 3, one kind as reference probe 100 provided by the utility model is specific Embodiment, needle body 10 are located at the center of connector 21.The structure can be convenient the position of positioning needle body 10, while be also convenient for determining The position of position through hole 13 and aperture 212 is inserted through in hole 13 convenient for measurement probe.

The utility model embodiment also discloses a kind of bone mechanical performance measuring device.Also referring to Fig. 1, the bone machine Tool performance measurement device includes reference probe 100 as described above.

The bone mechanical performance measuring device of the utility model has used above-mentioned reference probe 100, it can facilitates insertion people Body, and be not easy to be inserted into bone, bone damage is avoided, reduces the influence to measurement probe, and then measurement accuracy can be improved.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (10)

1. reference probe, including needle body, the axial direction in the needle body along the needle body offers through hole, and the needle body is transversal Face is in circular ring shape, and the needle body has a first end and a second end, and the first end and the second end are respectively the needle body length The both ends in direction, it is characterised in that: it is in the tip of circular conical surface, and the tip that the end of the first end of the needle body, which has side, Cross section be in gradually-reducing shape by the direction of the second end to the first end, and the tip of the needle body have planar end Face, the circumferential direction of the front at the tip offers several openings, and adjacent two open space is arranged.

2. reference probe as described in claim 1, it is characterised in that: several opening perimeter array distributions are in the tip Front.

3. reference probe as claimed in claim 2, it is characterised in that: the opening is 3-8.

4. reference probe as described in claim 1, it is characterised in that: the end face at the tip, which is equipped with, increases the surface roughness Embossed structure.

5. reference probe as described in claim 1, it is characterised in that: the folder of the axis of the side at the tip and the needle body Angular region is 4-8 degree.

6. reference probe as described in claim 1, it is characterised in that: each opening is V-shaped.

7. reference probe as claimed in claim 6, it is characterised in that: the angular range between the two sidewalls of each opening is 8-12 degree.

8. such as the described in any item reference probes of claim 1-7, it is characterised in that: the second end of the needle body is fixed with connection Head offers the aperture for being connected to the through hole in the connector, and the through hole and the aperture are coaxial.

9. reference probe as claimed in claim 8, it is characterised in that: the connector is cylindrical, and the connector is close One end of the needle body has bottom cover, and the needle body is connected with the bottom cover, and the aperture is located in the bottom cover.

10. bone mechanical performance measuring device, which is characterized in that including such as described in any item reference probes of claim 1-9.