WO2006104060A1 - 医療用の二重針、骨穿刺針および骨髄採取機器 - Google Patents
医療用の二重針、骨穿刺針および骨髄採取機器 Download PDFInfo
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- WO2006104060A1 WO2006104060A1 PCT/JP2006/306031 JP2006306031W WO2006104060A1 WO 2006104060 A1 WO2006104060 A1 WO 2006104060A1 JP 2006306031 W JP2006306031 W JP 2006306031W WO 2006104060 A1 WO2006104060 A1 WO 2006104060A1
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- Prior art keywords
- needle
- bone marrow
- bone
- tip
- puncture needle
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/025—Pointed or sharp biopsy instruments for taking bone, bone marrow or cartilage samples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/025—Pointed or sharp biopsy instruments for taking bone, bone marrow or cartilage samples
- A61B2010/0258—Marrow samples
Definitions
- the present invention relates to a double needle, a bone puncture needle, and a bone marrow collection device used for medical treatment such as bone marrow puncture.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-24339
- Patent Document 2 Japanese Utility Model Publication No. 6-21448
- Patent Document 3 Japanese Patent Laid-Open No. 2003-116862
- Patent Document 4 Japanese Patent Laid-Open No. 2002-28809
- Patent Document 5 Japanese Patent Application Laid-Open No. 2004-154296
- Patent Document 6 Japanese Patent No. 3311920
- Patent Document 7 Japanese Patent Application Laid-Open No. 2004-290542
- a double needle double puncture needle
- a hollow outer needle and an inner needle that is detachably inserted into the hollow outer needle are used. That is, a double needle is penetrated from the bone cortex to the bone marrow cavity, then the inner needle is extracted, and a guide wire for guiding the catheter into the outer needle is passed through a search tube for detection.
- only the outer needle is used as the bone puncture metal without using the inner needle.
- Patent Document 1 discloses a biopsy needle composed of an inner needle and an outer needle that are manually punctured, an injection tube for injecting a biomedical cement, and a biopsy after being inserted into the injection tube A biomedical cement injection device set consisting of stylets is proposed.
- the tip of the inner needle and the tip of the outer needle have a pyramid shape with the inner needle attached to the outer needle.
- the inner needle base and the outer needle base are configured so that the contact surface is formed with an uneven portion so that the angles are not shifted and are fitted to each other! /
- Patent Document 2 a mark (mark) that matches the blade tip surfaces of the outer needle (outer needle) and the inner needle (inner needle) is aligned with the needle base of the inner needle and the needle base of the outer needle.
- a cell collection needle provided in the form of is disclosed.
- FIG. 1 of Patent Document 2 shows a configuration in which the diameter of the tip of the inner needle is thicker than other parts, and A configuration is shown in which the cutting edge surfaces of the outer needle and the inner needle are flush with each other.
- Patent Document 3 discloses an electric drill used for bone marrow collection in which an inner needle is detachably and rotatably accommodated in a cylindrical mantle. In this document, it is disclosed to provide a co-rotation preventing means (a function opposite to the detent) that prevents co-rotation of the outer mantle and the inner needle. It is also disclosed that a drill blade is formed at the tip of the inner needle and a spiral groove is formed on the outer peripheral surface for removing cutting waste.
- Patent Document 4 discloses a technique for facilitating discharge of cutting waste by expanding the diameter of a tip in a motor-driven small drill used for metal processing or the like, although it is not used for puncturing a bone of a living body. ing.
- Patent Document 5 discloses a soft drill unit including a flexible soft tube and a flexible soft drill inserted into the flexible tube.
- the soft drill is composed of a flexible wire and an end mill provided at the tip of the wire.
- the rear end of the wire is rotationally driven by a motor.
- Patent Document 6 and Patent Document 7 disclose an injection needle in which the shape of the needle tip is devised. They are easy to pierce the skin.
- the outer needle base and the inner needle base of Patent Document 1 also serve as a handle for rotating the outer needle and the inner needle together, and the concave and convex portions are fitted when they are overlapped. Therefore, the alignment is troublesome. Although it is suitable for manual work, it is difficult to connect to a power source when rotating with power.
- the cell puncture needle of Patent Document 2 needs to be aligned while looking at the force mark provided with a mark that matches the cutting edge surface of the outer needle and the inner needle. There is.
- Patent Document 2 has a thin rear portion of the inner needle, but the outer needle itself is continuous with the same diameter. Therefore, it is difficult to escape the cutting waste cut by the outer needle.
- Patent Documents 3 and 4 each include a drill and a mantle that guides the drill. Moreover, in patent document 4, it is easy to escape cutting waste back by the point which made the front-end
- Patent Document 5 should also be called a bone marrow collection support device that can perform perforation and perforation smoothly. It shows the direction of spinal cord surgery. It is hoped that future double needles will be compatible with such devices.
- Patent Documents 6 and 7 are needles that pierce soft skin, they cannot be used as a puncture needle that forms a deep through-hole while cutting bone, but the shape of the needle tip is This suggests the improvement of the needle tip of the puncture needle.
- the medical double needle of the present invention (Claim 1) includes a cylindrical outer needle having a cutting edge at the tip, and a solid inner needle that is detachably housed inside the outer needle.
- the rotation diameter of the cutting edge when the outer needle is rotated around its long axis is the feature that it is larger than the rotation diameter of the main body.
- the tip of the outer needle is preferably on or near the rotation center axis of the long axis of the outer needle! /. (Claim 2). Furthermore, it is more preferable to have a co-rotating mechanism that rotates the outer needle and the inner needle together when the inner needle is attached to the outer needle and the outer needle is rotated around its long axis. (Claim 3).
- the outer needle and the inner needle are relatively movable in the long axis direction, and an engagement means for engaging the outer needle and the inner needle in the rotational direction is provided.
- an engagement means for engaging the outer needle and the inner needle in the rotational direction is provided.
- the outer needle is provided with a mark indicating the direction of the blade edge surface.
- the medical bone puncture needle of the present invention (Claim 6) has a cylindrical shape having a cutting edge at the tip, and the rotation diameter of the cutting edge when rotated about the long axis is the main body. It is characterized in that it is larger than the rotating diameter. Also in such a medical bone puncture needle, it is preferable that the cutting edge portion is on or near the rotation center axis of the long axis of the bone puncture needle! Further, the main body is provided with a mark indicating the direction of the blade edge surface. Are preferred (claim 8).
- a second aspect of the bone puncture needle of the present invention has a cylindrical shape, and includes a cutting edge portion that is cut obliquely on a plane inclined near the tip, and the tip of the cutting edge portion is a surface other than the plane. It is characterized by having a bladed part cut in step (Claim 9). To such a bone puncture needle! Therefore, it is preferable that the tip of the blade edge portion is provided with a blade attachment portion that is cut at a right angle to the longitudinal axis direction (claim 10).
- the expression “cut” here refers to other processing such as polishing by a polishing machine, cutting by pressing, forging, or laser cutting, which is not only necessary for actual cutting. Includes molding.
- the tip of the blade edge portion may be provided with a blade attachment portion that is inclined in a direction opposite to the inclined plane and is cut by a surface (claim 11). . Further, the cylindrical shape is crushed so that the vicinity of the tip has a substantially elliptical cross section, and the inclined surface has a certain amount relative to the plane including the longitudinal axis of the cylinder and the long axis of the cross section. It may be force inclined (claim 12).
- Any of the bone puncture needles preferably includes a suction port mounting portion for mounting a suction port in the vicinity of the rear portion (claim 13). Further, a drill engaging portion having an irregular cross section for attaching to the drill may be provided on the outer peripheral surface (claim 14).
- the bone marrow collection device of the present invention comprises a puncture needle that is punctured into the bone marrow cavity, and an adapter that is detachable from the puncture needle for attaching a suction syringe to the puncture needle.
- An adapter according to the present invention includes an attachment portion that is detachably attached to a puncture needle that is punctured into a bone marrow cavity, and an attachment portion that is attached to a suction syringe, and allows the puncture needle and the suction syringe to communicate with each other. (Claim 16).
- the puncture needle is punctured into the bone marrow cavity prior to the puncture of the bone marrow cavity, and a finer hole is made than the puncture needle. It is preferable to further include a guide line for guiding to the cavity (claim 17).
- a second aspect of the bone marrow collection device of the present invention includes a pipe-shaped outer needle and a rod-shaped inner needle mounted therein, a double needle that is pierced into the bone marrow cavity, and the outer needle It consists of an adapter that can be attached to and detached from the outer needle to attach a suction syringe. Claim 18).
- a third aspect of the bone marrow collection device of the present invention includes a puncture needle that is pierced into the bone marrow cavity, a catheter for sucking the bone marrow, and the catheter along the formed through-hole to the bone marrow cavity. And a guide wire for guiding the bone marrow to the bone marrow cavity (claim 19).
- the puncture needle in the bone marrow collection device may be a double needle comprising a pipe-shaped outer needle and a rod-shaped inner needle inserted into the pipe (claim 20).
- the puncture needle is attachable to a drill (claim 21).
- it may be provided with a handle that can be detachably attached to the puncture needle for manually rotating the puncture needle (claim 22).
- the tip of the guide wire is bent or curved so that the guide wire can be turned in the bone marrow cavity.
- Preferred are (claim 23).
- the tip of the guide wire is formed in a substantially spherical shape (claim 24).
- the bone marrow collection device provided with the catheter has a first lumen for feeding fluid into the bone marrow cavity and a second lumen for aspirating the bone marrow from the bone marrow cavity.
- the bone marrow force may also be a single lumen catheter for aspirating the bone marrow.
- the Kirschner steel wire is punctured to the bone marrow cavity, the needle-cum catheter is punctured to the bone marrow cavity using the Kirschner steel wire as a guide wire, and the needle-shared catheter is left.
- the Kirschner steel wire is withdrawn and the bone marrow is aspirated through a needle combined catheter (claim 25).
- the Kirschner steel wire and the needle combined catheter may be used in combination.
- the Kirschner steel wire and the needle combined catheter may be used in combination, but it is preferable to puncture the needle combined catheter with the Kirschner steel wire in advance.
- a fourth aspect of the bone marrow collection device of the present invention is a Kirschner steel wire, a catheter serving as a needle guided by the Kirschner steel wire, and a connecting means for connecting them without rotating each other. And a suction tool coupled to the needle combined catheter (claim 27).
- the rotational diameter of the blade tip portion of the outer needle is larger than the rotational diameter of the main body portion. Therefore, when puncturing while rotating the double needle, there is a gap between the inner surface of the hole formed in the bone and the main body. Therefore, the puncturing operation with a small frictional force generated in the main body is easy. In addition, since the gap between the inner surface of the hole and the main body serves as a passage for discharging the cutting waste to the outside, puncturing work is easy.
- the double needle for medical use in which the distal end of the outer needle is close to or near the rotation center axis of the long axis of the outer needle (Claim 2) has the inner needle inserted into the outer needle. Sometimes, the lumen of the outer needle is blocked by the tip of the inner needle. Therefore, cutting waste does not enter the gap between the outer needle and the inner needle. In addition, since it rotates around the needle tip (tip of the outer needle) that is close to the central axis, it can be safely punctured at the target position where there is little blurring of the needle tip.
- outer needle and the inner needle are relatively movable in the long axis direction, and provided with an engaging means for engaging the outer needle and the inner needle in the rotation direction (claim) Item 4) can be positioned in the angular direction between the outer needle and the tip of the inner needle by simply inserting the inner needle straight into the outer needle.
- the engaging means can be used as a co-rotating mechanism.
- the outer needle is provided with a mark indicating the direction of the cutting edge surface (Claim 5), when the inner needle is attached to the outer needle, it is easy to align it in the correct direction. In addition, after the needle is punctured, the direction of the needle tip (blade edge surface) can be confirmed, and the needle tip can be directed in a safe direction.
- the rotational diameter of the blade edge portion is larger than the rotational diameter of the main body portion. Therefore, when puncturing while rotating the needle, there is a gap between the inner surface of the hole formed in the bone and the main body. Therefore, the puncturing operation with a small frictional force generated in the main body and the operation of removing the needle are easy. Further, since the gap between the inner surface of the hole and the main body serves as a passage for discharging cutting waste to the outside, puncturing work is easy.
- a bone puncture needle (Claim 7) in which an inclined surface is formed in the blade tip portion, and the tip of the inclined surface is close to the rotation center axis or the vicinity of the rotation center axis in the long axis of the needle Because it rotates around the center, it can be punctured safely at the target position where there is little blurring of the needle tip.
- the bone puncture needle (Claim 8) provided with a mark indicating the direction of the blade edge surface on the main body portion (Claim 8) can confirm the direction of the needle tip (blade edge surface) after the puncture, and is safe.
- the needle tip can be pointed in any direction.
- the tip of the blade tip is ground with a surface other than the flat surface. Since it has an attachment part, it can efficiently cut bone cortex etc. according to the shape of the blade attachment part, or prevent the bone cortex on the opposite side of the bone marrow cavity from being cut out It is possible to prevent the thin-walled portion at the tip of the blade edge portion from breaking and falling off.
- the tip of the blade edge portion is provided with a bladed portion that is cut at right angles to the longitudinal axis direction (Claim 10), when bone puncture is performed by rotating the bone puncture needle, It is possible to prevent hollow bone cortex from being cut out through the cavity. Also, since there is no sharp tip, the probability that this part will fall off decreases.
- the tip of the blade edge portion includes a blade attachment portion that is inclined in a direction opposite to the inclined plane and is cut by a surface (claim 11), which reduces puncture performance. It is possible to prevent the bone cortex on the opposite side from being cut out.
- a third aspect of the bone puncture needle of the present invention (Claim 12) has a shape obtained by crushing a cylindrical shape so that the vicinity of the tip has a substantially elliptical cross section, and the inclined surface is , Because it is tilted to some extent with respect to the plane including the longitudinal axis of the cylinder and the long axis of the cross section, when cutting the bone cortex by rotating it, the edge on one side can scrape the tissue . Therefore, excavation efficiency is high
- the one provided with the suction port attaching portion for attaching the suction port in the vicinity of the rear portion can exhibit the action of the suction catheter by the bone puncture needle itself. it can. Therefore, fewer parts are required and bone marrow collection is easier.
- a drill engagement part with a modified cross-section for attachment to the drill on the outer peripheral surface of the bone puncture needle (Claim 14)
- it is attached to an electric drill or a hand-cranked drill.
- the puncture needle can be efficiently rotated.
- the bone marrow collection device of the present invention includes a puncture needle that is punctured into the bone marrow cavity, and an adapter that is detachable from the puncture needle for mounting a suction syringe on the puncture needle. Therefore, after puncturing to the bone marrow with a puncture needle, a suction syringe can be attached to the bone puncture needle via the adapter, and the bone marrow can be aspirated as it is without replacing the catheter. Further, since the adapter is detachable from the puncture needle, the puncture needle can be used for other purposes such as injecting a diluent such as physiological saline instead of the suction syringe.
- the adapter according to the present invention connects the puncture needle to be punctured into the bone marrow cavity to the attachment portion with the puncture needle, and attaches the suction syringe to the attachment portion with the syringe.
- a suction syringe can be communicated. Therefore, after puncturing to the bone marrow with the puncture needle, the bone marrow can be sucked as it is without replacing the catheter by attaching the arch I syringe to the puncture needle through the adapter.
- the adapter of the present invention is detachable from the puncture needle, the puncture needle can be used for other purposes such as injecting a diluent such as physiological saline instead of the suction syringe.
- the bone marrow sampling device described above is used to puncture the bone marrow cavity prior to the puncture of the puncture needle into the bone marrow cavity, to make a finer hole than the puncture needle and to puncture the puncture needle.
- a device further comprising a guide line for guiding the needle to the bone marrow cavity can first penetrate the bone marrow cavity with the guide line and puncture with the puncture needle along the guide line. . Therefore, it is easy to create an accurate puncture route.
- a second aspect of the bone marrow collection device of the present invention (Claim 18) is provided with a pipe-shaped outer needle and a rod-shaped inner needle mounted therein, and a double needle punctured into the bone marrow cavity is provided. Since it is provided, the bone cortex can be pierced by both the inner needle and the outer needle and penetrated to the bone marrow cavity. In this case, the inner needle can be drilled first, and then the outer needle can be drilled along the inner needle.
- the inner needle is removed, and a suction syringe is attached to the outer needle through an adapter, whereby the bone marrow can be aspirated and collected by allowing the outer needle to act as a catheter.
- a through-hole is formed to the bone marrow cavity by a puncture needle, a guide wire is passed through the through-hole, and the guide wire guides the through-hole.
- the bone marrow can be aspirated through the catheter through the catheter.
- the puncture needle in the bone marrow collection device is a double needle comprising a pipe-like outer needle and a rod-like inner needle inserted therein (claim 20)
- a guide wire or Kirschner steel A thin through-hole can be formed by force using an inner needle without using a wire.
- the inner needle and the outer needle can be put together and drilled with increased rigidity.
- the puncture needle can be attached to a drill (claim 21)
- the drill can be efficiently drilled by an electric drill or a hand drill.
- a handle that is detachably attached to the puncture needle is provided for rotating the puncture needle (Claim 22)
- the puncture needle can be rotated by the handle, thereby enabling a simple configuration. It can drill efficiently.
- a bone marrow collection device equipped with a guide wire! Can be bent or curved so that the guide wire can be turned in the bone marrow cavity.
- the direction of the tip of the guide wire can be freely changed by rotating the guide wire after the tip of the guide wire reaches the bone marrow cavity.
- the aspirated bone marrow can be collected from a wide range.
- the tip of the guide wire is formed in a substantially spherical shape (claim 24), the tip of the guide wire does not damage the inner surface of the bone marrow cavity.
- a bone marrow collection device equipped with a catheter
- the force tenor has a first lumen for feeding fluid into the bone marrow cavity and a second lumen for aspirating the bone marrow from within the bone marrow cavity (claim) Item 25) is capable of efficiently aspirating and collecting the diluted bone marrow through the second lumen while diluting with a solvent such as the first lumen force physiological saline. Even if only one lumen is used, the bone marrow is slightly aspirated through the lumen, diluted with physiological saline from the lumen, and then diluted with the lumen. Can be aspirated.
- a catheter serving as a needle is punctured to the bone marrow cavity along the Kirschner steel wire.
- Kirschner steel wire is used as a material to connect bones and is used by surgeons. Easy to work.
- a needle combined catheter is used, there is no need to replace the puncture needle with a catheter. That is, when the puncture needle is replaced with a suction catheter, the puncture needle is punctured along the Kirschner steel wire, then the puncture needle is pulled out and the catheter is inserted. Aspirate.
- the Kirschner wire is withdrawn and replaced with a guide wire, and then a suction catheter is inserted.
- a force tape that is also used as a needle is used, the above replacement work can be omitted, and the bone marrow collection work can be efficiently performed.
- parts management is easy because fewer parts are used.
- the Kirschner steel wire is used in conjunction with a needle combined catheter, the required length of the Kirschner steel wire can be shortened when piercing to the buttocks of the medullary canal and easy to handle. become.
- by allowing the needle combined catheter and Kirschner steel wire to advance together it is possible to prevent cutting waste from entering the lumen of the needle combined catheter.
- a Kirschner steel wire, a catheter serving as a needle guided by the Kirschner steel wire, and the catheter are prevented from rotating with respect to each other. Since the connecting means for connection and the suction tool connected to the needle combined catheter are provided, the bone marrow collection method of the present invention described above can be carried out.
- FIG. 1 is a side view showing an embodiment of the double needle of the present invention
- FIG. 2 is an exploded perspective view of the double needle
- FIGS. 3a and 3b show other embodiments of the double needle of the present invention.
- Side view and plan view, FIGS. 3c and 3d show still another embodiment of the double needle of the present invention, respectively.
- Side view and plan view, FIGS. 4a and 4b are plan views of an inner needle related to the present invention and Side views
- FIGS. 5a and 5b are main part plan views and main part side views showing still other embodiments of the outer needle according to the present invention
- FIGS. 6a and 6b are respectively the double needles of the present invention.
- FIG. 1 is a side view showing an embodiment of the double needle of the present invention
- FIG. 2 is an exploded perspective view of the double needle
- FIGS. 3a and 3b show other embodiments of the double needle of the present invention.
- Side view and plan view, FIGS. 3c and 3d show still another embodiment of
- FIG. 6c is a rear view showing the rear end side of the outer needle of the double needle
- FIGS. 7a and 7b are respectively the double needle of the present invention.
- FIG. 7c is a plan view and a side view showing still another embodiment of the outer needle involved
- FIG. Be a side view, respectively, Figure 7d and Figure 7e bone puncture needle of the present invention
- FIG. 8 is a side view showing an embodiment of a temporary fixing method according to the present invention
- FIGS. 9a and 9b are temporary fixings in another embodiment of the temporary fixing structure according to the present invention.
- FIG. 10 and FIG. 11 are side views showing still another embodiment of the temporary fixing structure according to the present invention
- FIG. 12a and FIG. 12b are still other examples of the bone puncture needle of the present invention, respectively.
- FIG. 13 is a plan view showing still another embodiment of the bone puncture needle of the present invention
- FIG. 14 is a side view showing still another embodiment of the bone puncture needle of the present invention
- FIG. 15a, FIG. 15b and FIG. 15c are a plan view, a side view and a front view, respectively, showing still another embodiment of the bone puncture needle of the present invention
- FIG. 16 shows still another embodiment of the bone puncture needle of the present invention.
- Fig. 17 shows an example of the bone marrow collection method of the present invention.
- FIG. 18a is a cross-sectional view showing an embodiment of the adapter according to the present invention together with a syringe, FIG.
- FIG. 18b is a cross-sectional view of the main part showing another method of using the adapter, and FIG. 19 is related to the present invention.
- FIG. 20, FIG. 21a and FIG. 21b are perspective views showing an embodiment of a guide wire according to the present invention
- FIG. 22 shows an embodiment of a catheter according to the present invention. It is a schematic side view shown.
- the double needle 10 shown in FIG. 1 also acts as a cylindrical outer needle 11 and an inner needle 12 inserted into the outer needle.
- the vicinity of the distal end of the outer needle 11 is an enlarged diameter portion 13 having an outer diameter larger than that of the other portion (main body portion).
- the diameter of the expanded portion 13 is larger than the diameter of the other portions.
- the circle drawn with the rotation diameter of the other part enters the inside of the circle drawn with the rotation diameter of the expanded part.
- the tip of the outer needle 11 is an inclined surface 14.
- the edge 15 around the inclined surface 14 acts as a cutting edge.
- An engagement groove 17 that extends in the radial direction and reaches the internal cavity 16 is formed at the rear end of the outer needle 11.
- the cutting edge may have other shapes known in the art such as a pyramid shape or a sawtooth shape.
- Such an outer needle 11 can be manufactured by, for example, press-molding a metal pipe having a circular cross section such as stainless steel or nitinol.
- the enlarged diameter portion 13 in the vicinity of the tip can be manufactured by plastic working such as diameter enlargement processing, but may be formed by cutting a portion other than the vicinity of the tip.
- the inclined surface 14 can be cut and polished. Can be molded.
- the metal plate can also be manufactured by forming it into a cylindrical shape.
- the outer diameter D1 of the main body of the outer needle 11 is preferably about 1 to 6 mm, particularly about 2 to 4 mm.
- the step Dd between the enlarged diameter portion 13 and the other portion (main body portion) is preferably about 0.1 to 0.3 mm, for example.
- the angle of the inclined surface 14 is preferably 20 to 60 degrees, particularly preferably about 20 to 40 degrees.
- the length of the outer needle 11 varies depending on the object of use. When it is used as a puncture needle for bone marrow collection, for example, about 100 to 200 mm is used.
- the inner needle 12 is a rod-shaped member having a circular cross section, and an inclined surface 21 having the same inclination angle as the distal end of the outer needle 11 is formed at the distal end.
- the inclined surfaces 14 and 21 are flush with each other.
- a plate-like flat portion 22 that engages with the engaging groove 17 of the outer needle 11 is formed at the rear end of the inner needle 12.
- the flat carrier 22 is preferably formed by press-molding a rod-shaped material that is the material of the inner needle 12.
- the inner needle 12 is made of the same material as the outer needle 11, for example, a steel wire, a stainless steel wire, or a metal wire such as -tinol (nickel / titanium-based shape memory alloy), preferably an elastic material having a high hardness. It can be manufactured by press-molding a high-performance metal wire to form the flat portion 22 and then cutting the inclined surface at the tip and polishing it IJ '.
- the outer diameter D2 of the inner needle 12 is, for example, about 1 to 3 mm, particularly about 1.6 to 2 mm.
- the inner cavity 16 of the outer needle 11 is almost the same as the diameter of the inner needle 12, and has a slidable fitting tolerance of about 0.1 to 0.4 mm. Since the tolerance and the cross-sectional shape are the same, when the flat portion 22 is not engaged with the engagement groove 17, the outer needle 11 and the inner needle 12 are rotatable.
- a mark Ml due to scratches or the like is provided at a position corresponding to the inclined surface 14 at the rear or central portion of the outer needle 11. Therefore, when the inner needle 12 is inserted into the outer needle 11, the inclined surface 21 of the inner needle 12 can be easily aligned with the inclined surface 14 of the outer needle 11.
- a mark M2 may be provided on the upper surface of the flat portion 22 at the rear end of the inner needle 12 according to the mark Ml of the outer needle. Thereby, it is difficult to make a mistake in the direction of the inclined surface 21 of the inner needle 12 (the direction of the front and back).
- the width of the flat portion 22 is the same as or slightly narrower than the diameter of the outer needle 11.
- the flat portion 22 is The surface force of the needle 11 does not protrude.
- the side edge of the flat portion 22 can be projected.
- the length of the flat part 22 Is longer than the length of the engaging groove 17.
- the thickness of the flat portion 22 is, for example, about 0.6 to 1.5 mm.
- the width of the engagement groove 17 of the outer needle 12 is about 0.15 to 0.25 mm larger than that. This facilitates engagement and release.
- the flat needle 22 of the inner needle 12 engages with the engagement groove 17 of the outer needle 11, so that the double needle 10 can be easily aligned. it can. Furthermore, since it does not rotate relatively, the inner needle 12 and the outer needle 11 do not shift in the rotation direction during work. Therefore, simply attaching the inner needle 12 to the outer needle 11 keeps the inclined surfaces 14 and 21 flush with each other and does not slip during the work. At this time, the rear portion 22a of the flat portion 22 also projects the rear end force of the outer needle 11. In this state, the handle is attached to the rear end of the double needle 10, and the double needle 10 is manually operated alternately in the forward direction and the backward direction while rotating left and right.
- the bone cortex can be perforated and the tip of the double needle 10 can be advanced to the bone marrow cavity.
- the double needle 10 can be drilled by connecting the rear end portion of the double needle 10 to a rotating shaft or the like using a drill chuck or the like, and operating the double needle 10 by motor driving or hand driving.
- the rear portion 22a (in some cases, the side edge) of the flat portion 22 from which the surface force of the outer needle 11 also protrudes can be used for coupling that allows torque transmission by engaging with the handle or drive shaft.
- the inner needle 12 can be extracted, and a guide wire or force taper can be passed through the inner cavity 16 of the outer needle 11.
- a guide wire or force taper can be passed through the inner cavity 16 of the outer needle 11.
- the outer needle 11 can be pulled out and guided through the guide wire, and the catheter can be passed through the bone marrow cavity to be used for bone marrow collection or bone marrow examination. If the catheter can be directly passed through the internal cavity 16 of the outer needle 11, it can be used for bone marrow collection or examination.
- the cutting edge portion 26 of the outer needle 11 is not evenly expanded in diameter, the width B is compressed narrowly, and the height H is somewhat increased. As a result, the blade edge portion 26 has a vertically long flat shape.
- This processing can be performed by applying a pressing force to the metal tube.
- the size of each step ds is about 0.1 to 0.3 mm.
- the diameter and thickness of the other part of the outer needle 11 are the same as in the case of FIG. However, the vertical dimension is small and the width is It can also be long oval.
- the internal cavity 16 also has a narrow width B2 and a high height H2.
- the rotational diameter of the blade edge portion 26 becomes larger than the rotational diameter of the main body. As shown in FIGS. 3c and 3d, the blade edge portion 26 may be pressed up and down. Even in this case, the rotation diameter of the cutting edge 26 is larger than the rotation diameter of the main body.
- the width of the vicinity 27 of the tip of the inner needle 12 is made narrower in accordance with the cutting edge portion 26 of the outer needle 11.
- This processing can be performed by subjecting the metal wire to grinding or polishing force, or by applying a pressing force and then polishing.
- an inner needle having a thin wire diameter adapted to the width B2 of the internal cavity may be used.
- the height of the vicinity 27 of the tip of the inner needle 12 is kept at the diameter of the original wire so that it can pass through the inner cavity 16 of the outer needle 11.
- the gap can be closed by bending the tip 26a of the blade edge portion 26 so as to approach the long axis C as shown in FIG. 6b.
- such a double needle 25 When the inner needle 12 is inserted into the outer needle 11 as shown in FIGS. 3a and 3b, such a double needle 25 has a tip 27 near the tip of the inner needle 12 whose cross section is not circular.
- the inner needle 12 does not rotate within the outer needle 11 because it is engaged with the portion 26.
- the cutting edge portion 26 of the outer needle 11 and the vicinity of the distal end 27 of the inner needle 12 that are flattened in this way each constitute a co-rotating mechanism.
- the usage or use of the double needle 25 is the same as that of the double needle 10 in FIG. As shown in FIG. 3a, it is possible to employ the same joint mechanism 20 on the rear end side as in the case of FIG.
- the flat portion 22 of the inner needle 12 is oriented in the same direction as the flattened front end 27. Can be done at once.
- the direction of the engagement groove 17 of the outer needle 11 is matched with the direction of the flat portion 22. Further, it is preferable to clean the vicinity 27 of the tip by polishing and cutting.
- the outer needle 28 shown in Figs. 5a and 5b has its tip end inclined to the inclined surface 14, and its tip end portion 29 is further flattened by a press cage.
- the width B3 of the tip 29 is, for example, about 3 to 3.5 mm, particularly about 3.2 mm.
- Such a double needle provided with the outer needle 28 has an effect that it is easy to remove when piercing a bone.
- the outer needle 11 is almost the same as in FIGS. 3a and 3b, the blade edge 26 is pressurized in the width direction, and the vertical dimension is the main body. It is getting bigger (see Figure 6c).
- the tip of the cutting edge 26 is a concave surface that is inclined straight toward the leading edge of the straight inclined surface, and the tip 26a of the cutting edge 26 is on the long axis (center line) C. Furthermore, when the inner needle 12 is inserted as shown in FIG. 6b, the inner needle 12 is curved upward along the inner shape of the outer needle 11 and the tip 21a of the inclined surface is long. Close to axis C. There is no particular bending. As a result, the lumen of the outer needle 11 is closed, and a bone marrow piece or the like at the time of puncture enters the gap between the inner needle 12 and the outer needle 11. It should be noted that the tip 26a of the outer needle 11 and the tip 21a of the inner needle 12 may be on or near the long axis C. Even if the gap is not completely closed, it can be effective even if it is narrow.
- the outer surface is a convex surface protruding outward.
- the inner surface is a concave curved surface like the inner surface of the spoon, with the original cylindrical surface combined with the curve that becomes slanted as it is directed toward the tip.
- the other parts are the same as the double needle 25 in FIGS. 3a and 3b.
- the edge 26 of the tip 26a of the cutting edge portion 26 of the outer needle 11 has a circular arc! It may be sharp so that it is sharp or obtuse.
- the double needle 25A in Fig. 6a and Fig. 6b is a safety feature because the tip (needle tip) 26a of the blade tip 26 is close to the long axis C and the needle can rotate around the needle tip, enabling stable puncture. Can also contribute.
- the outer needle 11 in Figs. 3a, 3b, 6a, and 6b has a rotational diameter larger than that of the main body by reducing the widthwise dimension of the blade edge portion 26 and increasing the vertical dimension.
- the thickness of the region 31 on the distal end side may be curved almost the same as that of the main body. In this embodiment, it is curved in an arc shape with a predetermined radius of curvature R so as to warp to the inclined surface 14 side.
- the tip 30a substantially coincides with the long axis C, and the upper end 30b of the inclined surface 14 protrudes from the surface of the main body by a predetermined step Dd. Therefore, as shown in FIG.
- the rotational diameter Dm of the upper end 30b of the inclined surface 14 is larger by 2 X Dd than the diameter D1 of the main body.
- the step Dd is usually about 0.5 to 1 mm, and the radius of curvature R is 60 to 80. It is about mm.
- the outer needle 30 has the same effect as the outer needle of FIGS. 6a and 6b at the time of puncturing, and is easy to manufacture.
- the outer needle 30 in FIG. 7 can be used alone as a bone puncture needle with a force that can be used as a double needle together with the inner needle.
- the outer needle 11 in FIGS. 3a and 3b can also be used as a bone puncture needle. In that case, as shown in FIG. 7d, the engagement groove at the rear end (reference numeral 17 in FIG. 3b) is unnecessary.
- the outer needle (bone puncture needle) 11 in FIG. 7d can be used in combination with Kirschner steel wire generally used in orthopedics. In other words, because Kirschner steel wire has a simple round bar with a blade at its end, it is a force that resists puncture and removal.
- the outer needle (bone puncture needle) has features that make it easy to puncture and remove, Can assist in drilling steel wires. Kirschner steel wire can also be used as a puncture aid for bone puncture needles. When both are used together, the outer needle 11 can be used in advance or the Kirschner wire can be used in advance. When the former method is used, cutting waste may get stuck in the lumen of the outer needle 11, but it can be pushed out with something like an inner needle later, so the outer needle 11 is used alone as a bone puncture needle. be able to.
- the engagement groove at the rear end is not required as shown in Fig. 7e.
- the outer needle 11 has a tip 26a at the blade edge portion that is closer to the long axis C than a general bone puncture needle, and thus the needle can rotate around the needle tip. Therefore, stable puncture can be performed, which can contribute to safety. In addition, if a mark is provided so that the direction of the needle tip can be recognized, it can further contribute to safety.
- Fig. 8 shows a temporary fixing method of the co-rotating mechanism 20 provided at the rear end portion.
- the length of the flat portion 22 of the inner needle 12 is longer than the length of the engaging groove 17 of the outer needle 11. Accordingly, when the inner needle 12 is inserted into the outer needle 11 and the flat portion 22 is engaged with the engagement groove 17, the rear portion 22 a of the flat portion 22 protrudes from the rear end of the outer needle 11.
- a contraction tube 33 made of synthetic resin is fitted to the rear end of the outer needle 11, and the contraction tube 33 is contracted by applying heat. As a result, the rear portion 22a of the flat portion 22 from which the rear end force of the outer needle 11 protrudes is held by the contraction tube 33, and the inner needle 12 cannot be removed from the outer needle 11.
- the inner needle 12 and the outer needle 11 can be integrated assuredly.
- use the shrink tube 33 Just pull it out or just cut it out.
- an elastic tube may be used in place of the contraction tube 33, and in this case, a certain degree of effect can be achieved.
- the temporary fixing structure 34 shown in Figs. 9a and 9b is a nut having a male screw 35 formed at the rear end of the outer needle 11 and a female screw 36 screwed to the male screw 35! / Cap 37.
- the rear end of the inner needle 12 is fixed to the center of the inner surface of the cap 37.
- the cap 37 can also form a force such as a metal or a synthetic resin that can be welded or bonded to the inner needle 12.
- the rear end of the inner needle 12 may be fixed to the cap 37, but may be connected so as to be rotatable and not to come off.
- Such a screw-type temporary fixing structure 34 cannot be used in the case of the double needle 25 having a non-rotating mechanism around the tip 27 itself as shown in Figs. 3a and 3b.
- This can be used when the inner needle 12 rotates within the outer needle 11, as on the tip side of 10.
- the rear end of the inner needle 12 is connected to the cap 37 so that it can rotate freely and does not come off, it can be used even when the tip side is a detent mechanism.
- the inner needle 12 is fixed to the cap 37 by welding or bonding. At the position where the screw stops, the tip of the inner needle 12 and the tip of the outer needle 11 are flush with each other as shown in FIG.
- the inner needle 12 and the cap 37 can be formed as a single unit.
- a screw member 41 is attached and fixed to the rear end of the outer needle 11, and the female screw 36 of the cap 37 is screwed into the male screw 42 provided on the screw member 41.
- the screw member 41 may be made of metal or synthetic resin. Note that the screw of the screw member 41 can be a female screw and the cap 37 side can be a male screw.
- the temporary fixing structure 42 shown in FIG. 11 is configured such that the protruding portion 43 a of the locking member 43 fixed to the rear end of the outer needle 11 and the concave portion 44 of the cap 37 are snap-fitted.
- Reference numeral 45 denotes an annular protrusion, which elastically engages with an annular groove 46 formed on the inner surface of the cap 37.
- the locking part The unevenness of the material 43 and the cap 37 may be reversed.
- the annular protrusion 45 can also be configured by a separate part such as a snap ring formed of, for example, a metal wire.
- the bone puncture needle 50 shown in FIG. 12a has a cylindrical shape, and has a blade edge portion 52 obliquely bent by a first plane 51 at the tip, and the tip of the blade edge portion is the first. And a bladed portion 54 cut by a second flat surface 53 different from the flat surface 51.
- the second plane 53 is a plane inclined in the direction opposite to the first plane 51 with respect to the longitudinal axis (long axis) C of the bone puncture needle.
- the inclination angle of the first plane 51 is about 20 to 40 degrees with respect to the major axis C, while the second plane 53 is about 5 to 90 degrees with respect to the major axis C.
- the second plane 53 is inclined at about 45 to 90 degrees, preferably about 70 to 80 degrees with respect to the long axis in plan view.
- a straight blade attachment portion 54 having an edge at the intersection of the first plane 51 and the second plane 53 is formed at the tip of the blade edge portion 52.
- the cutting edge portion 52 may be made somewhat thicker than the body portion 56, or may be deformed to be somewhat oval by press molding.
- the outer diameter of the body portion 56 is, for example, about 2 to 3 mm, and the inner diameter is about 1 to 2 mm, like the outer needle 11 in FIG. Materials such as stainless steel, ditinol and titanium alloys are used.
- the bone puncture needle 50 is inclined in the direction indicated by the arrow L since the blade attaching portion 54 in Fig. 12b is inclined, the blade attaching portion 54 can scrape the bone cortex. Therefore, the bone puncture needle 50 can be rotated in the direction of the arrow L with an electric drill or a hand drill, etc., and puncture can be performed while cutting bone cortex and the like efficiently. Further, as compared with the case of the outer needle 11 in FIG. 1, since the tip has a blunt angle, there is less possibility that the inner surface side force of the bone cortex on the opposite side of the bone cortex perforated in the bone marrow cavity is pulled out. Furthermore, since the thin part of the tip is cut, the probability that the part will fall off decreases.
- the second plane and blade 54 may be perpendicular to the long axis C, in which case there is minimal risk of internal forces being pulled through the bone cortex opposite the bone cortex drilled in the bone marrow cavity. (See Figure 14).
- the bone puncture needle 57 shown in FIG. 13 has a configuration in which it is scraped off at a second plane 53 and obliquely cut at a third plane 58 symmetrical to the second plane 53 and the long axis C. ing. This is a force that requires additional processing compared to the bone puncture needle 50 of FIGS. 12a and 12b. It has the same effect as the bone puncture needle 50 in Fig. 12b, and when the bone puncture needle 57 is rotated with an electric drill, drill, etc. Can be cut.
- a bone puncture needle 60 shown in FIG. 14 has a form in which the tip is cut by a second plane 61 perpendicular to the long axis C. This has effects such as prevention of hollowing of the opposite side of the bone marrow cavity, prevention of falling off of the tip, and easy drilling with a drill, and also has an IJ point that is easy to process for manufacturing.
- the vicinity of the tip 63 is formed in a substantially elliptical shape as shown in Fig. 15c, and then the symmetry plane 64 of the elliptical cylinder, that is, the major axis of the ellipse, Grind and sharpen the surface including the axis C in the longitudinal direction of the cylinder with a surface inclined V or somewhat clockwise. Therefore, as shown in FIG. 15a, the elliptical inclined surface 65 appearing by grinding is shifted to the right side (upper side in the figure) and to the left side (lower side in the figure) on the hand side, as shown in FIG. 15a. . Furthermore, as shown in FIG.
- the inclined surface 65 is somewhat visible even when viewed from the side. Therefore, the bone cortex can be efficiently cut at the inner edge 66 of the elliptical annular inclined surface.
- the edge 66 can be efficiently cut at the outer peripheral portion far from the longitudinal axis C force, that is, at the distal end side and the proximal end side. Can do.
- a bone puncture needle 67 shown in FIG. 16 includes a drill engaging portion 68 having a substantially square cross section sandwiched by a chuck of a drill in the vicinity of the rear portion of the body portion 56 or in the middle of the body portion 56.
- a drill engaging portion 68 can be formed by cutting the surface of the body portion when the body portion 56 is thick. In that case, the internal cavity maintains a circular cross-section.
- the outer shape is deformed into a square cross section by pressing. In that case, the internal cavity also deforms into a square shape.
- the bone puncture needle 67 provided with such a drill engaging portion 68 can hold the drill engaging portion 68 firmly with a chuck of the drill, and is used in the case where the body portion having a circular cross section is held as it is. In comparison, slipping is less likely to occur. Therefore, it is possible to cut bone cortex with strong torque.
- the cross-sectional shape of the outer surface of the drill engaging portion 68 depends on the shape of the drill chuck, but is not limited to a quadrangle, and various rectangular and elliptical shapes such as a triangle and a hexagon can be used. Also, salmon It can also be used for drills that are not equipped with chucks or drill bits.
- the Kirschner steel wire 70 the Kirschner steel wire 70, the electric drill 71 that holds and rotates the Kirschner steel wire 70, the needle-use catheter 72, the connector 73 that connects the Kirschner steel wire 70 and the needle-use catheter 72,
- a bone marrow collection device comprising an adapter (Boast adapter) 75 for connecting a syringe 74 for suction to the rear end of the needle-use catheter 72 is used.
- the kill tuner steel wire 70, the electric drill 71 and the syringe 74 conventionally known ones can be used.
- the electric drill 71 is of a penetrating type so that the Kirschner steel wire 70 and the needle-use catheter 72 can be grasped in the middle.
- the needle combined catheter 72 is substantially the same as the above-described double needle outer needle (Fig. 1 to: L1 symbol 11 etc.) and bone puncture needle (Fig. 12 to 16 etc.). Those having a thickness of about 100 to 600 mm, particularly about 200 to 400 mm are preferable, and those having some flexibility are preferable. Furthermore, an adapter 75 for connecting the syringe 74 is formed in a shape that can be detachably connected in an airtight state at or near the rear end of the needle combined catheter 72.
- an O-ring groove for attaching an O-ring to maintain an airtight state is provided, and a male screw for fixing the adapter 75 is formed on the outer periphery, or a structure that is tightened with a flexible object is used.
- the Kirschner steel wire 70 is preferably about 250 mm (150 mm + extended) longer than the needle-use catheter 72. Further, when a boast adapter having a structure capable of maintaining an airtight state is used as the adapter 75, it is more preferable because the processing to the needle combined catheter 72 is unnecessary.
- An adapter 76 shown in FIG. 18a is a modification of the boast adapter, and is a substantially cylindrical main body 77, a tightening cap 78 screwed around the outer periphery of the tip, and a packing formed at the tip of the main body 77. And packing 79 accommodated in the accommodating portion 77a.
- the inner surface of the knocking accommodating portion 77a is tapered.
- the knock 79 has an annular shape with a substantially trapezoidal cross section, and the outer peripheral surface is tapered to fit with the inner surface of the packing accommodating portion 77a.
- a through hole 79a for fastening the needle catheter 72 is formed at the center of the knockout 79.
- a hole 78a through which the needle catheter 72 is passed is formed in the center of the clamping cap 78.
- An annular protrusion 78b for pushing the packing 79 into the surface is formed.
- a hole 77b is formed to be fitted to the rear part of the needle combined catheter 72.
- the hole 77b has an engagement step part 77c engaged with the rear end of the needle combined catheter 72. It continues to the communication hole 77d through which the bone marrow sucked through.
- a cylindrical connecting part 77e for connecting to the syringe 74A is provided at the rear part of the main body 77.
- a fitting hole 77f having a tapered surface that fits with the distal end portion 74b of the syringe 74A is formed. The tip of the fitting cavity 77f communicates with the communication hole 77d.
- a male screw 77g that is screwed with the connecting screw 74c of the syringe 74A is provided on the outer periphery of the connecting portion 77e.
- the male thread 77g is preferably a multiple thread such as a double thread.
- the front end portion 74b is fitted into the fitting hole 77f of the connecting portion 77e at the rear end of the main body 77, and the connecting screw 74c is screwed into the male screw 77g.
- the tapered surfaces are tightly fitted to each other, and an almost airtight state is maintained.
- the bone marrow can be sucked into the syringe 74A through the needle combined catheter 72. As shown in FIG.
- the adapter 76 can also be used for connecting a normal syringe 74 and a needle-use catheter, which is provided with a connecting screw.
- the tip 74a of the syringe 74 is simply fitted tightly into the fitting hole 77f. Since the inside of the syringe 74 has a negative pressure, a force sufficient for such insertion may be fixed with a rubber tube or a shrink tube as necessary.
- the male screw 77g need not be provided.
- the connecting tool 73 for connecting the needle combined catheter 72 and the Kirschner steel wire 70 has one end. Is provided with a first clamping part for clamping the needle-cum-use catheter 72 so that it does not rotate in the vicinity of the end of the catheter 72 and is not displaced in the axial direction, so that the Kirschner steel wire 70 is not rotated at the other end. It is a cylindrical thing provided with the 2nd clamping part clamped so that it may not shift to a direction. Both the first clamping part and the second clamping part can be the same as the drill chuck.
- the first clamping portion may be a female screw that is screwed with a male screw formed in the vicinity of the rear end of the combined needle catheter 72.
- the connector can be configured by the same structure as the temporary fixing structure shown in FIGS.
- the connector 73 may be a flexible member such as silicone rubber, an elastic member, or a cylindrical member having a heat shrinkable material force.
- the shape of the clamping portion is not necessary, it can be formed simply by cutting the tube.
- one end of the tube is the first connecting portion and the other end is the second connecting portion. Note that the first connecting portion and the second connecting portion may be formed to have different diameters.
- Kirschner steel wire 70 is attached to electric drill 71, and Kirschner steel wire 70 is fed while rotating from bone end 80, and its tip reaches inside bone marrow cavity 81. Puncture until (1st step Sl).
- the length F from the epiphyseal surface to the tip of Kirschna steel wire 70 should be approximately 150mm.
- the needle-use catheter 72 is attached to the electric drill 71, and the bone marrow cavity 81 is punctured while being guided by the Kirschner steel wire 70 (second step S2).
- Kirschner steel wire 70 is used as the guide wire.
- the rear end of the Kirschner steel wire 70 is picked with a finger 82 so that the Kirschner steel wire 70 does not reach the ridges without permission.
- the tip force of the needle-use catheter 72 should be such that the Kirschner steel wire 70 protrudes about 10 to LOOmm.
- the connecting tool 73 is used to couple the rear end of the combined needle catheter 72 and the Kirschner steel wire 70 so as not to rotate and to move relatively in the axial direction.
- the Kirschner steel wire 70 and the needle combined catheter 72 are advanced while being rotated by the electric drill 71, and puncture is made to the heel of the bone marrow cavity 81 (third step S3).
- the necessary length of the Kirschner steel wire 70 can be shortened and the handling becomes easy. That is, Kirschner wire 70 If the needle is punctured deeply first, the needle and catheter 72 cannot be sufficiently guided unless the Kirschner steel wire 70 that is exposed to the outside is left long.
- the length of the Kirschner wire 70 is required to be more than twice the length of the needle-cum-use catheter 72, so that it can be used.
- the needle combined catheter 72 and the Kirschner steel wire 70 are required to advance together, it is possible to prevent cutting waste from entering the lumen of the needle combined catheter 72.
- a pre-suction syringe gate is provided using a three-way stopper, and the air layer is sucked by the pre-suction syringe, and then the original syringe 74 is placed. Switch to bone marrow arch I. As a result, the suction operation can be performed efficiently.
- the path to the bone marrow cavity 81 or the bone marrow cavity 81 itself may be slightly bent.
- a flexible catheter such as a pipe made of a thin metal, such as -tinol, as the needle-use catheter 72.
- a bone marrow collection device including a Kirschner steel wire 70, an electric drill 71, a needle combined catheter 72, a connector 73, a syringe 74, and an adapter 75 is used.
- the parts excluding the electric drill 71, namely Kirschner steel wire 70, needle-use catheter 72, coupling tool 73, syringe 74, and adapter 75 are combined together as a bone marrow collection kit or bone marrow collection set. It is preferable to sell.
- Kirschner steel wire 70 and the syringe 74 for suction can be general-purpose products, the needle-cum catheter 72 and the adapter 75 excluding these can be sold as a set. Furthermore, Kirschner steel wire 70 with appropriate length may be included in the set.
- Kirschner steel wire 70 guide wires or guides having similar functions are used. Dwyer can also be used. As described above, a pipe-like bone puncture needle can be adopted as the needle-use catheter 72. In addition, instead of the combination of the needle-use catheter 72 and Kirschna steel wire 70, a pipe-like outer needle and the inside thereof are used. A double needle (see Fig. 1) with a rod-shaped inner needle to be attached may be used. In this case, a catheter that sucks bone marrow through a through-hole formed with a double needle and a suction syringe attached to the catheter are used. If the outer needle and inner needle of the double needle are lengthened, the bone marrow can be collected by attaching a suction syringe directly to the outer needle or via an adapter without using a catheter.
- a bone marrow aspiration catheter When a bone marrow aspiration catheter is used, a bone puncture needle to be punctured into the bone marrow cavity, a catheter for aspirating the bone marrow, and the catheter along the formed through hole to the bone marrow cavity A bone marrow collection device that includes a guide wire for guiding to the cavity may be sold. Furthermore, these sets can be made by adding Kirschner steel wires.
- the needle combined catheter 72, outer and inner needles, Kirschner steel wire 70, and guide wire are preferably those that can be rotated with an electric drill, but a handle that is manually rotated is detachably provided. It may be.
- a guide wire as shown in FIG. 20, it is preferable to bend or curve the distal end portion 85 of the guide wire 84 from which the distal end opening force of the catheter 83 or the catheter serving as a needle protrudes. This can easily change the direction of the guide wire 84 by rotating the rear end of the guide wire 84.
- the guide wires 86 and 87 shown in Figs. 21a and 21b are each provided with a spherical portion 88 at the tip.
- the spherical portion 88 of the guide wire 86 in FIG. 21a has a hemispherical shape with the same diameter as the outer diameter of the guide wire. Therefore, it is easy to insert into a catheter.
- the diameter of the spherical portion 88 is slightly larger than the outer diameter of the guide wire. Therefore, it is possible to easily advance to the bone marrow cavity in the bone marrow cavity.
- the guide wires 86 and 87 are provided with the spherical surface portion 88 at the tip, the bone cortex and the like cannot be excavated. Therefore, it is used to guide the catheter through a through-hole formed in advance with a bone puncture needle.
- This guide wire 86 has a rounded tip, and when inserted into the bone marrow cavity, even if it hits the opposite inner wall, it will not be damaged.
- the catheter for aspirating the bone marrow further includes a first lumen 89 for feeding a fluid such as physiological saline into the bone marrow cavity, and aspiration of the bone marrow from the bone marrow cavity.
- a double-lumen type catheter 91 with a second lumen 90 is preferred. Accordingly, the bone marrow can be aspirated with the syringe 74 connected to the second lumen 90 while injecting a diluent 92 such as physiological saline into the bone marrow cavity 81.
- a diluent 92 such as physiological saline
- FIG. 1 is a side view showing an embodiment of a double needle of the present invention.
- FIG. 2 is an exploded perspective view of the double needle.
- FIG. 3a and FIG. 3b are a side view and a plan view, respectively, showing another embodiment of the double needle of the present invention
- FIG. 3c and FIG. 3d are still other embodiments of the double needle of the present invention, respectively. It is the side view and top view which show this.
- FIGS. 4a and 4b are a plan view and a side view of an inner needle according to the present invention, respectively.
- FIG. 5a and FIG. 5b are a plan view and a side view of relevant parts showing still another embodiment of the outer needle according to the present invention.
- FIGS. 6a and 6b are a side view and a plan view, respectively, showing still another embodiment of the double needle of the present invention.
- Fig. 7a and Fig. 7b are a plan view and a side view, respectively, showing still another embodiment of the outer needle related to the double needle of the present invention
- Fig. 7c is a side view, a diagram showing the action of the outer needle
- 7d and 7e are side views showing embodiments of the bone puncture needle of the present invention.
- FIG. 8 is a side view showing an embodiment of a temporary fixing method according to the present invention.
- FIG. 9a and FIG. 9b are side views showing a temporarily fixed state and a released state in another embodiment of the temporary fixed structure according to the present invention, respectively.
- FIG. 10 is a side view showing still another embodiment of the temporary fixing structure according to the present invention.
- FIG. 11 is a side view showing still another embodiment of the temporary fixing structure according to the present invention.
- FIG. 12a and FIG. 12b are a side view and a plan view, respectively, showing still another embodiment of the bone puncture needle of the present invention.
- FIG. 13 is a plan view showing still another embodiment of the bone puncture needle of the present invention.
- FIG. 14 is a side view showing still another embodiment of the bone puncture needle of the present invention.
- FIG. 15a, FIG. 15b and FIG. 15c are a plan view, a side view and a front view, respectively, showing still another embodiment of the bone puncture needle of the present invention.
- FIG. 16 is a perspective view of a main part showing still another embodiment of the bone puncture needle of the present invention.
- FIG. 17 is a process diagram showing one embodiment of the bone marrow collection method of the present invention.
- FIG. 18a is a cross-sectional view showing an embodiment of an adapter according to the present invention
- FIG. 18b is a cross-sectional view of a main part showing another method of using the adapter.
- FIG. 19 is a cross-sectional view showing an embodiment of a connector according to the present invention together with a method of use.
- FIG. 20 is a perspective view showing an embodiment of a guide wire according to the present invention.
- FIG. 21a and FIG. 21b are perspective views showing other embodiments of the guide wire according to the present invention.
- FIG. 22 is a schematic side view showing an embodiment of a catheter according to the present invention.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06729979.2A EP1864650A4 (en) | 2005-03-29 | 2006-03-24 | DOUBLE NEEDLE FOR MEDICAL TREATMENT, BONE PUNCTURE NEEDLE, AND BONE MARROW SAMPLING DEVICE |
CN2006800176888A CN101208046B (zh) | 2005-03-29 | 2006-03-24 | 医疗用的双重针、骨穿刺针以及骨髓采集设备 |
US11/910,411 US20100030105A1 (en) | 2005-03-29 | 2006-03-26 | Double needle for medical treatment, bone puncture needle, and bone marrow harvesting device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005096570 | 2005-03-29 | ||
JP2005-096570 | 2005-03-29 |
Publications (1)
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WO2006104060A1 true WO2006104060A1 (ja) | 2006-10-05 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2006/306031 WO2006104060A1 (ja) | 2005-03-29 | 2006-03-24 | 医療用の二重針、骨穿刺針および骨髄採取機器 |
Country Status (5)
Country | Link |
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US (1) | US20100030105A1 (ja) |
EP (1) | EP1864650A4 (ja) |
JP (1) | JP2010167287A (ja) |
CN (2) | CN102100568A (ja) |
WO (1) | WO2006104060A1 (ja) |
Cited By (5)
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CN102462871A (zh) * | 2010-11-18 | 2012-05-23 | 刘大志 | 一种建立骨髓液体通路的装置和方法 |
WO2015098898A1 (ja) * | 2013-12-26 | 2015-07-02 | 株式会社 貝印刃物開発センター | トロカール及びその製造方法 |
CN105274052A (zh) * | 2014-06-06 | 2016-01-27 | 希森美康株式会社 | 细胞的回收方法及用于该方法的加工骨 |
CN108186057A (zh) * | 2018-01-29 | 2018-06-22 | 三明学院 | 一种骨髓穿刺针 |
CN114533233A (zh) * | 2022-02-24 | 2022-05-27 | 盛晓磊 | 一种用于髌骨骨折的克氏针及其使用方法及其使用方法 |
Families Citing this family (29)
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US8088150B2 (en) * | 2008-02-04 | 2012-01-03 | Aleeva Medical Inc. | Device for disc shunt implantation and peri-shunt injection |
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JP5797017B2 (ja) * | 2011-05-30 | 2015-10-21 | Hoya株式会社 | 超音波内視鏡用穿刺針装置 |
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WO2016195132A1 (ko) * | 2015-06-03 | 2016-12-08 | (주)리젠바이오참 | 의료용 주사침 및 이의 제조 방법 |
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CN117122353B (zh) * | 2023-10-26 | 2024-01-02 | 深圳市华晨阳科技有限公司 | 一种骨髓干细胞提取用穿刺取样装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05269144A (ja) * | 1992-03-23 | 1993-10-19 | Kuramoto Kogyo Kk | 骨折−経皮的鋼線刺入用ガイド |
JP2001292999A (ja) * | 2000-04-14 | 2001-10-23 | B Braun Japan Co Ltd | 生検用針 |
JP2002535064A (ja) * | 1999-01-28 | 2002-10-22 | ミンラッド・インコーポレーテッド | サンプルを回収するためのサンプリング装置とその方法 |
JP2002538922A (ja) * | 1999-03-19 | 2002-11-19 | ローレンス サーヴィ,ポール | 生検針 |
JP2003511191A (ja) * | 1999-10-19 | 2003-03-25 | カイフォン インコーポレイテッド | 身体内部領域にアクセスする手持ち式機器 |
WO2004037093A1 (de) * | 2002-10-25 | 2004-05-06 | Somatex Medical Technologies Gmbh | Biopsathaltevorrichtung für eine biopsiekanüle |
JP2004154582A (ja) * | 2002-10-22 | 2004-06-03 | Allegiance Corp | 生検装置ハンドル組立体 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6194642A (ja) * | 1984-10-15 | 1986-05-13 | 株式会社 カテツクス | 穿刺ドレナ−ジ針 |
US4793363A (en) * | 1986-09-11 | 1988-12-27 | Sherwood Medical Company | Biopsy needle |
JPH0317844Y2 (ja) * | 1986-10-24 | 1991-04-16 | ||
US5122134A (en) * | 1990-02-02 | 1992-06-16 | Pfizer Hospital Products Group, Inc. | Surgical reamer |
ES2023597A6 (es) * | 1990-11-05 | 1992-01-16 | Rodiera Olive Jose Javier | Aguja para uso medico, en especial para funcion lumbar y anestesia regional. |
US5290267A (en) * | 1991-01-17 | 1994-03-01 | Fresenius Ag | Hypodermic needle |
SE9304261D0 (sv) * | 1993-12-22 | 1993-12-22 | Radi Medical Systems | Anordning för biopsiprovtagning |
US6592588B1 (en) * | 1995-02-16 | 2003-07-15 | Arthrex, Inc. | Apparatus for osteochondral autograft transplantation |
US6120517A (en) * | 1996-04-26 | 2000-09-19 | Daum Gmbh | Controlled-artifact magnetic resonance instruments |
US5938635A (en) * | 1996-12-30 | 1999-08-17 | Kuhle; William G. | Biopsy needle with flared tip |
US6080115A (en) * | 1999-02-24 | 2000-06-27 | Rubinstein; Alan I. | Bone marrow biopsy needle |
US6575919B1 (en) * | 1999-10-19 | 2003-06-10 | Kyphon Inc. | Hand-held instruments that access interior body regions |
US6730043B2 (en) * | 2000-04-18 | 2004-05-04 | Allegiance Corporation | Bone marrow biopsy needle |
US7201722B2 (en) * | 2000-04-18 | 2007-04-10 | Allegiance Corporation | Bone biopsy instrument having improved sample retention |
CN2443699Y (zh) * | 2000-11-08 | 2001-08-22 | 程玉芝 | 螺旋型骨髓活检针 |
JP2002325848A (ja) * | 2001-05-02 | 2002-11-12 | Takeshi Chiba | ストロー状の部品〔シースガイド〕を付けることにより血管内に入る長さを安全に変えることができるカテーテルイントロデューサー。〔オフセットシース〕 |
JP4058614B2 (ja) * | 2001-08-09 | 2008-03-12 | 株式会社Jimro | 骨髄針 |
US20040153005A1 (en) * | 2002-01-03 | 2004-08-05 | Krueger John A. | Bone marrow aspiration device with curved tip |
WO2005096952A1 (ja) * | 2004-04-05 | 2005-10-20 | Nippon Cable System Inc. | 骨髄採取方法およびそれに用いる医療器具 |
-
2006
- 2006-03-24 EP EP06729979.2A patent/EP1864650A4/en not_active Withdrawn
- 2006-03-24 WO PCT/JP2006/306031 patent/WO2006104060A1/ja active Application Filing
- 2006-03-24 CN CN2010105670904A patent/CN102100568A/zh active Pending
- 2006-03-24 CN CN2006800176888A patent/CN101208046B/zh not_active Expired - Fee Related
- 2006-03-26 US US11/910,411 patent/US20100030105A1/en not_active Abandoned
-
2010
- 2010-03-15 JP JP2010058541A patent/JP2010167287A/ja active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05269144A (ja) * | 1992-03-23 | 1993-10-19 | Kuramoto Kogyo Kk | 骨折−経皮的鋼線刺入用ガイド |
JP2002535064A (ja) * | 1999-01-28 | 2002-10-22 | ミンラッド・インコーポレーテッド | サンプルを回収するためのサンプリング装置とその方法 |
JP2002538922A (ja) * | 1999-03-19 | 2002-11-19 | ローレンス サーヴィ,ポール | 生検針 |
JP2003511191A (ja) * | 1999-10-19 | 2003-03-25 | カイフォン インコーポレイテッド | 身体内部領域にアクセスする手持ち式機器 |
JP2001292999A (ja) * | 2000-04-14 | 2001-10-23 | B Braun Japan Co Ltd | 生検用針 |
JP2004154582A (ja) * | 2002-10-22 | 2004-06-03 | Allegiance Corp | 生検装置ハンドル組立体 |
WO2004037093A1 (de) * | 2002-10-25 | 2004-05-06 | Somatex Medical Technologies Gmbh | Biopsathaltevorrichtung für eine biopsiekanüle |
Non-Patent Citations (1)
Title |
---|
See also references of EP1864650A4 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102462871A (zh) * | 2010-11-18 | 2012-05-23 | 刘大志 | 一种建立骨髓液体通路的装置和方法 |
WO2015098898A1 (ja) * | 2013-12-26 | 2015-07-02 | 株式会社 貝印刃物開発センター | トロカール及びその製造方法 |
JP2015123220A (ja) * | 2013-12-26 | 2015-07-06 | 株式会社貝印刃物開発センター | トロカール |
US10285728B2 (en) | 2013-12-26 | 2019-05-14 | Kai R&D Center Co., Ltd. | Trocar and method for producing same |
CN105274052A (zh) * | 2014-06-06 | 2016-01-27 | 希森美康株式会社 | 细胞的回收方法及用于该方法的加工骨 |
CN105274052B (zh) * | 2014-06-06 | 2021-03-16 | 希森美康株式会社 | 细胞的回收方法及用于该方法的加工骨 |
CN108186057A (zh) * | 2018-01-29 | 2018-06-22 | 三明学院 | 一种骨髓穿刺针 |
CN114533233A (zh) * | 2022-02-24 | 2022-05-27 | 盛晓磊 | 一种用于髌骨骨折的克氏针及其使用方法及其使用方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1864650A4 (en) | 2014-01-15 |
EP1864650A1 (en) | 2007-12-12 |
JP2010167287A (ja) | 2010-08-05 |
US20100030105A1 (en) | 2010-02-04 |
CN102100568A (zh) | 2011-06-22 |
CN101208046A (zh) | 2008-06-25 |
CN101208046B (zh) | 2011-01-12 |
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