CN209360747U - Bone biopsy needle - Google Patents

Abstract

A kind of bone biopsy needle of the utility model, including handle, needle tubing and needle core, handle includes the upper cover body that can be fastened relatively and lower cover, it is fixedly connected at needle core upper end and upper cover body lower surface center, it is fixedly connected at needle tubing upper end and lower cover lower surface center, when upper cover body and lower cover fasten, needle core is placed through inside needle tubing, and needle core lower end is extend out to outside needle tubing by needle tubing lower end, upper cover body upper surface is the curved surfaces being gradually reduced by center to edge, being located at needle tubing two sides on lower cover lower surface, fovea superior is formed with appearance and refers to slot respectively, needle interior wall is equipped with anti-skid structure.The upper housing of the utility model in use, can be closely bonded with the user's palm completely, be exerted a force convenient for user, be had the advantages that convenient for operation, when penetrating cortical bone, be easy inserting needle, operation difficulty is small；By the anti-skid structure on needle interior wall, the probability that bone tissue sampling slides can be effectively reduced so that sampling can be easily accomplished and shorten the biopsy time, reduce patient's pain.

Description

Bone biopsy needle

Technical field

The utility model relates to a kind of Medical sampling instruments, refer in particular to a kind of bone biopsy needle.

Background technique

Bone biopsy needle is mostly that ilium biopsy uses, and also has and punctures for positions such as vertebra, long bones.When in use, pass through bone After biopsy needle passes through skin and hard cortical bone, complete 1.5-2cm tubular bone myeloid tissue is collected to make pathology inspection It looks into.The diagnosis, antidiastole and therapeutic effect that bone marrow biopsy is mainly used for hematohistology parting and hematologic disease are sentenced It is fixed.

But existing bone biopsy needle has the problem that the handle of existing bone biopsy needle is mostly rectangle when in use, with Palm shape fitness is lower, is unfavorable for doctor's operation, and when wearing cortical bone, inserting needle is difficult, and operation difficulty is big, also, is wearing During crossing cortical bone progress bone tissue sampling, it often will appear the problem of bone tissue sample slides, can not successfully take out, make It must sample very laborious, cause the biopsy time long, patient is very painful.

Utility model content

The purpose of the utility model is to provide a kind of bone biopsy needles, and there is handle capable of being to be adjacent to the user's palm completely, be convenient for The advantages of user operates and can improve bone tissue sample success rate.

In order to achieve the above object, the utility model provides a kind of bone biopsy needle, wherein the bone biopsy needle includes hand Handle, needle tubing and needle core, the handle includes can the opposite upper cover body fastened and lower cover, the upper end of the needle core and the upper cover It is fixedly connected at the center of the lower surface of body, it is fixed at the center of the lower surface of the upper end of the needle tubing and the lower cover to connect It connects, in the state that the upper cover body and the lower cover fasten, the needle core is placed through the inside of the needle tubing, and the needle The lower end of core is extend out to the outside of the needle tubing by the lower end of the needle tubing, and the upper surface of the upper cover body is by center to edge The curved surfaces being gradually reduced, the two sides of the needle tubing are located on the lower surface of the lower cover, and fovea superior is formed with appearance and refers to respectively The inner wall of slot, the needle tubing is equipped with anti-skid structure.

Bone biopsy needle as described above, wherein the anti-skid structure is the anti-slip layer being laid on the inner wall of the needle tubing.

Bone biopsy needle as described above, wherein the anti-skid structure is on multiple inner walls for being uniformly distributed in the needle tubing Anti-skidding convex grain.

Bone biopsy needle as described above, wherein the roughness of the inner wall of the needle tubing is 1 μm~1.5 μm.

Bone biopsy needle as described above, wherein the upper surface of the upper cover body is convex oval hemisphere face.

Bone biopsy needle as described above, wherein the lower end of the needle tubing is in tapered diameter shape from top to bottom.

Bone biopsy needle as described above, wherein the lower end of the needle tubing is formed with blade.

Bone biopsy needle as described above, wherein the blade includes multiple downwardly projecting blade tips, multiple blade tip edges The axial uniform intervals of the needle tubing are arranged.

Bone biopsy needle as described above, wherein from top to bottom tapered diameter forms needle point for the lower end of the needle core.

Bone biopsy needle as described above, wherein the handle is plastic handle.

Compared with prior art, as follows the advantages of the utility model:

The utility model is gradually reduced curved surfaces by center to edge by being set as the upper surface of upper housing, is using In the process, it can closely be bonded with the palm of user, consequently facilitating user exerts a force, have the advantages that convenient for operation completely, When penetrating cortical bone, it is easy inserting needle, operation difficulty is small；It, can be effective simultaneously by the way that anti-skid structure is arranged on the inner wall of needle tubing It reduces the probability that bone tissue sampling slides and shortens the biopsy time so that sampling can be easily accomplished, reduce patient's pain.

Detailed description of the invention

Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model It encloses.Wherein:

Fig. 1 is the main view of bone biopsy needle provided by the utility model；

Fig. 2 is the side view of bone biopsy needle provided by the utility model；

Fig. 3 is the top view of bone biopsy needle provided by the utility model；

Fig. 4 is that the handle of bone biopsy needle provided by the utility model is in the structural schematic diagram of disassembled form；

Fig. 5 is the main view of the needle tubing of bone biopsy needle provided by the utility model；

Fig. 6 is the partial sectional view of the needle tubing of bone biopsy needle provided by the utility model.

Drawing reference numeral explanation:

1, handle；

11, upper cover body；

12, lower cover；

2, needle tubing；

21, blade；

211, blade tip；

22, anti-slip layer；

3, needle core

Specific embodiment

In order to have clearer understanding to the technical solution of the utility model, purpose and effect, now in conjunction with Detailed description of the invention sheet The specific embodiment of utility model.

As shown in Figure 1 to 4, the utility model provides a kind of bone biopsy needle, wherein bone biopsy needle includes handle 1, needle Pipe 2 and needle core 3, handle 1 include the upper cover body 11 that can be fastened relatively and lower cover 12, and upper cover body 11 is in bottom opening shape, lower cover Body 12 is in top opening shape, is activity button-fold, the upper end of needle core 3 and the following table of upper cover body 11 between upper cover body 11 and lower cover 12 It is fixedly connected, is fixedly connected at the upper end and the center of the lower surface of lower cover 12 of needle tubing 2, to guarantee upper cover body at the center in face 11 when fastening, needle core 3 and needle tubing 2 are coaxial with lower cover 12, and in the state of upper cover body 11 and lower cover 12 fastening, needle core 3 is worn It is placed in the inside of needle tubing 2, and the lower end of needle core 3 is extend out to the outside of needle tubing 2, the upper surface of upper cover body 11 by the lower end of needle tubing 2 For the curved surfaces being gradually reduced by center to edge, since the palm of user is when carrying out gripping action, the palm of the hand is in substantially Arc curved shape, the upper surface of upper cover body 11 is set as the curved surfaces being gradually reduced by center to edge can be with user's Palm is preferably bonded, and is exerted a force convenient for user, and operation is more convenient comfortable, positioned at needle tubing 2 on the lower surface of lower cover 12 Fovea superior is formed with appearance and refers to slot respectively for two sides, can be embedding respectively at the two sides of needle tubing 2 for two fingers in user's gripping handle 1 Enter to hold and refer in slot and held handle 1 with stronger, is convenient for the stronger gripping handle 1 of user；It is set on the inner wall of needle tubing 2 There is anti-skid structure, to guarantee that bone tissue sample will not slide along needle tubing 2 in sampling process, to improve sampling success rate, add Fast sample rate reduces patient suffering.

Further, bone biopsy needle provided by the utility model, wherein anti-skid structure is to be laid on the inner wall of needle tubing 2 Anti-slip layer 22, anti-slip layer 22 be by blasting treatment, and after blasting treatment carry out galvano-cautery processing and be formed in needle tubing 2 On inner wall, blasting treatment is used to increase the roughness of 2 inner wall of needle tubing, and galvano-cautery processing is used to remove in floating sand, to prevent from floating Sand falls to contaminated samples in bone tissue in sampling process.Wherein, anti-slip layer can be set to be prolonged upwards by the lower end of needle tubing 2 3cm~5cm long is stretched, that is, can guarantee and extract enough bone tissue samples for examining.

Further, bone biopsy needle provided by the utility model, wherein anti-skid structure may be multiple is uniformly distributed in Anti-skidding convex grain on the inner wall of needle tubing 2.It should be noted that anti-slip layer 22 and anti-skidding convex grain are only the preferable implementation of anti-skid structure Example, the utility model are not limited thereto.

Further, bone biopsy needle provided by the utility model, wherein the roughness of the inner wall of needle tubing 2 be 1 μm~ 1.5 μm, to guarantee there is enough frictional force between 2 inner wall of bone tissue sample in sampling process and needle tubing, to guarantee bone tissue Sample will not slide from needle tubing 2, improve sampling success rate.

Further, as shown in figure 3, bone biopsy needle provided by the utility model, wherein the upper surface of upper cover body 11 is upper Convex oval hemisphere face, when carrying out gripping action, oval hemispherical long axis direction is consistent with palm width direction, and oval half The short-axis direction of spherical surface is bonded perpendicular to palm and finger with the palm preferably with user.

Further, as shown in Figures 5 and 6, bone biopsy needle provided by the utility model, wherein the lower end of needle tubing 2 be in by Up to lower tapered diameter shape, the lower end size to guarantee needle tubing 2 is smaller and the pain of patient is reduced during penetrating cortical bone It is bitter.

Further, as shown in Figures 5 and 6, bone biopsy needle provided by the utility model, wherein the lower end shape of needle tubing 2 At there is blade 21, in order to which the cortical bone that the lower end of needle tubing 2 quickly can easily penetrate patient is sampled, and cortical bone is being penetrated During reduce patient pain.

Preferably, as shown in Figures 5 and 6, bone biopsy needle provided by the utility model, wherein blade 21 includes multiple Downwardly projecting blade tip 211, multiple blade tips 211 are arranged along the axial uniform intervals of needle tubing 2, during penetrating cortical bone, Blade tip 211 first penetrates cortical bone, continues to promote with needle tubing 2, and entire blade 21 penetrates cortical bone, with further Improve sample rate, wherein blade tip 211 can be set at least two；Preferably, setting 3~5 for the number of blade tip 211 A preferred embodiment for the utility model, it should be noted that the number of blade tip 211 can also be set as other numbers, this reality It is not limited thereto with novel.

Further, as shown in Figure 1, bone biopsy needle provided by the utility model, wherein the lower end of needle core 3 is from top to bottom The blade 21 of the lower end of tapered diameter formation needle point, needle point and needle tubing 2 cooperatively forms the cone-shaped knot of tapered diameter from top to bottom Structure, during being sampled, needle point and blade 21 fit through cortex bone jointly, will after needle tubing 2 is inserted into the patient Upper cover body 11 and lower cover 12 are split, and needle core 3 can be withdrawn from from needle tubing 2 upwards.

Preferably, bone biopsy needle provided by the utility model, wherein handle 1 is plastic handle 1, with further Improve comfort level of the user in gripping handle 1.

Compared with prior art, as follows the advantages of the utility model:

The utility model is gradually reduced curved surfaces by center to edge by being set as the upper surface of upper housing, is using In the process, it can closely be bonded with the palm of user, consequently facilitating user exerts a force, have the advantages that convenient for operation completely, When penetrating cortical bone, it is easy inserting needle, operation difficulty is small；It, can be effective simultaneously by the way that anti-skid structure is arranged on the inner wall of needle tubing It reduces the probability that bone tissue sampling slides and shortens the biopsy time so that sampling can be easily accomplished, reduce patient's pain.

The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model It encloses.Any those skilled in the art, it is made etc. under the premise of not departing from the conceptions and principles of the utility model With variation and modification, the range of the utility model protection should belong to.

Claims (10)

1. a kind of bone biopsy needle, which is characterized in that the bone biopsy needle includes handle, needle tubing and needle core, and the handle includes energy With respect to the upper cover body and lower cover fastened, it is fixedly connected at the upper end of the needle core and the center of the lower surface of the upper cover body, It is fixedly connected at the upper end of the needle tubing and the center of the lower surface of the lower cover, in the upper cover body and the lower cover button In the state of conjunction, the needle core is placed through the inside of the needle tubing, and the lower end of the needle core is stretched out by the lower end of the needle tubing To the outside of the needle tubing, the upper surface of the upper cover body is the curved surfaces being gradually reduced by center to edge, the lower cover Positioned at the two sides of the needle tubing, fovea superior is formed with appearance and refers to slot respectively on the lower surface of body, and the inner wall of the needle tubing is equipped with anti-Slipped Clove Hitch Structure.

2. bone biopsy needle according to claim 1, which is characterized in that the anti-skid structure is the interior of the needle tubing that be laid in Anti-slip layer on wall.

3. bone biopsy needle according to claim 1, which is characterized in that the anti-skid structure is described in multiple be uniformly distributed in Anti-skidding convex grain on the inner wall of needle tubing.

4. described in any item bone biopsy needles according to claim 1~3, which is characterized in that the roughness of the inner wall of the needle tubing It is 1 μm~1.5 μm.

5. bone biopsy needle according to claim 1, which is characterized in that the upper surface of the upper cover body is convex ellipse half Spherical surface.

6. bone biopsy needle according to claim 1, which is characterized in that the lower end of the needle tubing is in tapered diameter from top to bottom Shape.

7. bone biopsy needle according to claim 1 or 6, which is characterized in that the lower end of the needle tubing is formed with blade.

8. bone biopsy needle according to claim 7, which is characterized in that the blade includes multiple downwardly projecting blade tips, Multiple blade tips are arranged along the axial uniform intervals of the needle tubing.

9. bone biopsy needle according to claim 1, which is characterized in that the lower end of the needle core from top to bottom tapered diameter shape At needle point.

10. bone biopsy needle according to claim 1, which is characterized in that the handle is plastic handle.