JP2011182986A - Insertion assist tool for organ fixation device - Google Patents

Insertion assist tool for organ fixation device Download PDF

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JP2011182986A
JP2011182986A JP2010052102A JP2010052102A JP2011182986A JP 2011182986 A JP2011182986 A JP 2011182986A JP 2010052102 A JP2010052102 A JP 2010052102A JP 2010052102 A JP2010052102 A JP 2010052102A JP 2011182986 A JP2011182986 A JP 2011182986A
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puncture needle
push
locking portion
organ
passage
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Masato Nagata
眞人 永田
Masaki Nakamura
雅樹 中村
Norihisa Kamigatakuchi
典久 上潟口
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EISHINKAI NAGATA GEKA NAIKA IIN
Top KK
Top Corp
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EISHINKAI NAGATA GEKA NAIKA IIN
Top KK
Top Corp
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Priority to JP2010052102A priority Critical patent/JP2011182986A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an insertion assist tool for an organ fixation device which enables an operation to be performed in an effective and safe manner by preventing an error in puncturing. <P>SOLUTION: An insertion assist tool 1 for an organ fixation device includes a puncture needle 2, a cylinder 3 anchored in a position posterior to the puncture needle 2; and an extrusion member 4 which can be connected to the puncture needle 2 and the cylinder 3. Before use, the extrusion member 4 is held in a position anterior to the puncture needle 2 by a body anchor 51 set in the body, and after use, the extrusion member 4 is held in a protruding way in a position anterior to the needle tip 21 of the puncture needle 2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、患者の胃等の臓器内壁を皮膚側壁に固定する臓器固定具を、体内へ挿入する際に用いられる臓器固定具用挿入補助具に関する。   TECHNICAL FIELD The present invention relates to an organ fixing tool insertion aid used when an organ fixing tool for fixing an inner wall of an organ such as a stomach of a patient to a skin side wall is inserted into the body.

従来、食物を経口摂取できない患者のために、体外から胃内に貫通する孔(瘻孔)を患者に穿設し、瘻孔を介して胃内に胃瘻チューブを挿入し、胃瘻チューブを介して直接胃に栄養物を供給することが行われている。   Conventionally, for patients who cannot take food orally, a hole (fistula) penetrating into the stomach from outside the body is drilled in the patient, and a gastrostomy tube is inserted into the stomach through the fistula, and through the gastrostomy tube Nutrition is directly supplied to the stomach.

一般的に、体外から瘻孔を形成する際には、予め、患者の胃壁と皮膚側壁とを臓器固定具で固定する。臓器固定具は、胃内に投入される棒状の体内係止部と、体内係止部の中央に連結され胃壁と皮膚側壁とを貫通する縫合糸と、縫合糸の後端に結合され体外から縫合糸を所定の長さで固定する固定部材とを有するものが知られている(例えば、特許文献1参照)。   Generally, when forming a fistula from outside the body, the stomach wall and skin side wall of the patient are fixed in advance with an organ fixing tool. The organ fixing device includes a rod-shaped body locking portion that is inserted into the stomach, a suture that is connected to the center of the body locking portion and penetrates the stomach wall and the skin side wall, and is coupled to the rear end of the suture from outside the body. What has a fixing member which fixes a suture thread by predetermined length is known (for example, refer to patent documents 1).

臓器固定具は、挿入補助具を用いることによって患者に装着される。挿入補助具は、臓器固定具の体内係止部を先端内側に収納可能な中空の穿刺針と、体内係止部を穿刺針から押し出し可能な押出部材とを有するものが特許文献1に開示されている。   The organ fixing tool is attached to the patient by using an insertion aid. Patent Document 1 discloses an insertion assisting tool that includes a hollow puncture needle that can house the internal locking part of the organ fixing tool inside the distal end, and an extrusion member that can push out the internal locking part from the puncture needle. ing.

挿入補助具の具体的な使用方法は、まず、術者は、穿刺針に押出部材がセットされた状態で、穿刺針の先端内側に臓器固定具の体内係止部を収納し、その状態で、穿刺針を患者の体外から穿刺し、患者の胃壁と皮膚側壁とを貫通させる。次に、押出部材を穿刺針の後方から前方へ移動させ、穿刺針の針先から体内係止部を押し出すことにより、体内係止部を胃内に投入する。さらに、臓器固定具の縫合糸を体外から引っ張ることで、体内係止部が胃壁を皮膚側壁に引き寄せられ、この状態で縫合糸を固定部材で固定する。   A specific method of using the insertion aid is as follows. First, the operator stores the internal locking part of the organ fixing tool inside the distal end of the puncture needle with the pushing member set in the puncture needle. The puncture needle is punctured from outside the patient's body to penetrate the stomach wall and skin side wall of the patient. Next, the push-in member is moved from the back to the front of the puncture needle, and the internal locking portion is pushed out from the needle tip of the puncture needle, whereby the internal locking portion is introduced into the stomach. Furthermore, by pulling the suture thread of the organ fixing tool from the outside of the body, the in-body locking portion pulls the stomach wall toward the skin side wall, and in this state, the suture thread is fixed by the fixing member.

特開平4−226676号公報JP-A-4-226676

しかしながら、従来の臓器固定具用挿入補助具では、穿刺針に対して押出部材が常に移動可能な状態であるため、術者による意図しない押出部材の前方又は後方移動が生じるおそれがある。これにより、穿刺針の針先から体内係止部が誤って押し出されたり、穿刺針の後端から押出部材が誤って抜けてしまうことがあり、操作性が悪いものであった。また、使用後に穿刺針の針先が露出して誤刺が発生するおそれがあり、安全性に問題があった。   However, in the conventional insertion assisting tool for organ fixing tool, since the pushing member is always movable with respect to the puncture needle, there is a possibility that the pushing member is unintentionally moved forward or backward by the operator. As a result, the internal locking portion may be accidentally pushed out from the needle tip of the puncture needle, or the push-out member may be accidentally pulled out from the rear end of the puncture needle, resulting in poor operability. In addition, the needle tip of the puncture needle may be exposed after use and may cause a false puncture, resulting in a safety problem.

本発明は、上記の不都合を解消して、操作性及び安全性を向上させることができる臓器固定具用挿入補助具を提供することを目的とする。   An object of the present invention is to provide an insertion assisting tool for an organ fixing tool that can solve the above inconveniences and improve operability and safety.

上記課題を解決するため、本発明の臓器固定具用挿入補助具は、棒状の体内係止部と、前記体内係止部の中央に連結された縫合糸とからなる臓器固定具を体内へ挿入するために使用する臓器固定具用挿入補助具であって、患者に穿刺する方向を前方、患者から離れる方向を後方としたときに、前記体内係止部が前方位置に収納された状態で患者の体内へ穿刺可能であり、内部に軸方向に連通する第1通路を有する穿刺針と、前記穿刺針の後方位置に固定され、内部に軸方向に前記第1通路と連通する第2通路を有するシリンダと、前記第1通路及び前記第2通路に挿通され、前記穿刺針に収納された体内係止部を押し出し可能な押出部材とを備えるものにおいて、前記押出部材は、前記体内係止部を前記穿刺針の前方位置に収納可能な第1位置と、前記体内係止部を前記穿刺針から体内へ押し出すとともに、前端部が前記穿刺針の前端部よりも前方へ突出する第2位置とで係止され、外部操作により前記第1位置から第2位置へ移動可能に設けられていることを特徴とする。   In order to solve the above-described problems, an insertion support for an organ fixing device according to the present invention inserts an organ fixing device comprising a rod-shaped body locking portion and a suture thread connected to the center of the body locking portion into the body. An insertion assisting tool for an organ fixing tool used for the purpose, wherein the patient is in a state where the internal locking portion is stored in the front position when the direction of puncturing the patient is the front and the direction away from the patient is the rear. A puncture needle that has a first passage that communicates in the axial direction and a second passage that is fixed at a rear position of the puncture needle and communicates with the first passage in the axial direction. And a pushing member that is inserted through the first passage and the second passage and can push out the in-vivo locking portion housed in the puncture needle. Can be stored in the front position of the puncture needle And the body locking portion is pushed out from the puncture needle into the body, and the front end portion is locked at a second position protruding forward from the front end portion of the puncture needle. It is provided to be movable to two positions.

本発明によれば、穿刺針の前方位置に体内係止部を収納する空間を保持した状態で、押出部材が係止されるので、意図しない押出部材の前方移動が防止される。また、使用後は、押出部材の前端部を穿刺針の針先よりも前方へ突出させた状態で、押出部材が係止されるので、医療従事者や廃棄を行う作業者に誤って針が刺さる誤刺を防止することができる。   According to the present invention, since the pushing member is locked in a state where the space for housing the in-vivo locking portion is held at the front position of the puncture needle, unintended forward movement of the pushing member is prevented. In addition, after use, the push-out member is locked with the front end of the push-out member projecting forward from the needle tip of the puncture needle. It is possible to prevent piercing mistakes.

また、本発明において、前記押出部材には、外周面から突出する方向に突没自在に付勢された係合爪が設けられ、前記シリンダの周壁部には、前記係合爪に係合して前記押圧部材を前記第1位置に係止する第1係合穴と、前記第2位置に係止する第2係合穴が設けられ、前記第1係合穴は、前記押出部材の後方移動を規制するとともに、前記押出部材の前方移動を、前記押出部材の前方へ加わる力が所定値未満であれば規制し、所定値以上であれば許容するように前記係合爪と係合され、前記第2係合穴は、少なくとも前記押出部材の後方移動を規制するように係合爪と係合されていることが好ましい。   In the present invention, the pushing member is provided with an engaging claw that is urged so as to protrude and retract in a direction protruding from the outer peripheral surface, and the peripheral wall portion of the cylinder is engaged with the engaging claw. A first engagement hole for locking the pressing member at the first position and a second engagement hole for locking at the second position, and the first engagement hole is located behind the extrusion member. In addition to restricting the movement, the forward movement of the pushing member is restricted if the force applied to the front of the pushing member is less than a predetermined value, and is allowed to engage if the force is greater than or equal to the predetermined value. The second engagement hole is preferably engaged with an engagement claw so as to restrict at least the backward movement of the pushing member.

これによれば、押出部材は、第1位置において後方への移動が規制されるので、穿刺針の後方から押出部材が誤って抜けることはない。また、押出部材は、押出部材に所定値以上の力が加わるまで、第1位置において前方への移動が規制されるので、意図しない押出部材の前方移動が防止される共に、押出部材を第1位置から第2位置へ移動させる際には、所定値以上の力を加えるだけで、第1位置における前方への移動規制を解除できる。さらに、押出部材は、第2位置において後方への移動が規制されるので、誤って穿刺針の針先が露出することはない。   According to this, since the backward movement of the push-out member is restricted at the first position, the push-out member is not accidentally pulled out from the back of the puncture needle. Further, since the forward movement of the push-out member is restricted at the first position until a force equal to or greater than a predetermined value is applied to the push-out member, unintended forward movement of the push-out member is prevented and the push-out member is moved to the first position. When moving from the position to the second position, the forward movement restriction at the first position can be canceled simply by applying a force of a predetermined value or more. Furthermore, since the backward movement of the push-out member is restricted at the second position, the needle tip of the puncture needle is not accidentally exposed.

また、本発明において、前記シリンダには、外周面を周回するように溝が形成され、前記溝には、輪状に形成された弾性部材が嵌合され、前記体内係止部が前記穿刺針の前方位置に収納された状態で、前記穿刺針の前端部から引き出された前記縫合糸が、前記溝と前記弾性部材との間に挟まれて留められていることが好ましい。   In the present invention, a groove is formed in the cylinder so as to go around an outer peripheral surface, and an elastic member formed in a ring shape is fitted into the groove, and the in-vivo locking portion is formed on the puncture needle. It is preferable that the suture thread pulled out from the front end portion of the puncture needle is sandwiched and held between the groove and the elastic member while being stored in the front position.

これによれば、体内係止部を刺針の前方位置に収納した状態で縫合糸を留めて置くことができる。即ち、本発明に臓器固定具をセットした状態を長期間維持できるので、臓器固定具をセットした状態で保管することが可能となり、また、臓器固定具をセットした状態で販売に供することも可能となる。   According to this, the suture thread can be fastened and placed in a state where the internal locking portion is housed in the front position of the puncture needle. That is, since the state in which the organ fixing device is set in the present invention can be maintained for a long time, it can be stored in the state in which the organ fixing device is set, and can also be offered for sale in the state in which the organ fixing device is set. It becomes.

本実施形態の臓器固定具用挿入補助具を示す正面図。The front view which shows the insertion auxiliary tool for organ fixing tools of this embodiment. 図1のII−II線で切断した断面図。Sectional drawing cut | disconnected by the II-II line | wire of FIG. 臓器固定具用挿入補助具に臓器固定具を取り付けた状態を示す説明図。Explanatory drawing which shows the state which attached the organ fixing tool to the insertion auxiliary tool for organ fixing tools. 本実施形態の使用方法を示す説明図。Explanatory drawing which shows the usage method of this embodiment.

次に、本発明の実施形態について図面を参照して詳しく説明する。まずは、図1、図2を参照して、本実施形態の臓器固定具用挿入補助具1の構成について説明する。   Next, embodiments of the present invention will be described in detail with reference to the drawings. First, with reference to FIG. 1, FIG. 2, the structure of the insertion auxiliary tool 1 for organ fixing devices of this embodiment is demonstrated.

本実施形態の臓器固定具用挿入補助具1は、穿刺針2と、穿刺針2の後方位置に固定されたシリンダ3と、穿刺針2とシリンダ3に挿通可能な押出部材4とからなる。   The organ fixing tool insertion assisting tool 1 of this embodiment includes a puncture needle 2, a cylinder 3 fixed at a rear position of the puncture needle 2, and a push member 4 that can be inserted into the puncture needle 2 and the cylinder 3.

穿刺針2は、ステンレス製の円筒からなる注射針であって、穿刺針2の内部は、押出部材4が軸方向に挿通自在な内部通路22となっている。穿刺針2の針先21には、針先21から後方に向かってスリット23が形成され、スリット23付近の内部通路22は、後述の体内係止部51が収納される収納部24となっている。また、穿刺針2の後方位置には、内部通路22と連通するようにシリンダ3が固定されている。   The puncture needle 2 is an injection needle made of a stainless steel cylinder, and the inside of the puncture needle 2 is an internal passage 22 through which the pushing member 4 can be inserted in the axial direction. A slit 23 is formed in the needle tip 21 of the puncture needle 2 rearward from the needle tip 21, and an internal passage 22 near the slit 23 serves as a storage portion 24 in which an internal locking portion 51 described later is stored. Yes. In addition, a cylinder 3 is fixed at a rear position of the puncture needle 2 so as to communicate with the internal passage 22.

シリンダ3は、合成樹脂製の円筒であって、シリンダ3の内部は、押出部材4が軸方向に挿通自在な内部通路31となっている。内部通路31の径は、押出部材4の外径よりもやや大きくなっている。また、シリンダ3の周壁部には、軸方向に所定の間隔をおいて貫通する係合穴32、33が設けられている。さらに、シリンダ3の中心軸を境に左右両対称に指掛部34, 34が設けられている。   The cylinder 3 is a cylinder made of synthetic resin, and the inside of the cylinder 3 is an internal passage 31 through which the pushing member 4 can be inserted in the axial direction. The diameter of the internal passage 31 is slightly larger than the outer diameter of the pushing member 4. Further, the peripheral wall portion of the cylinder 3 is provided with engagement holes 32 and 33 penetrating at a predetermined interval in the axial direction. Furthermore, finger hooks 34 are provided symmetrically with respect to the center axis of the cylinder 3.

押出部材4は、穿刺針2の内部通路22に挿通自在なロッド41と、ロッド41の後方位置に固定されたプランジャ42とを備えている。
ロッド41は、ステンレス製の芯棒である。ロッド41の前端部411は、術者等の皮膚に誤って刺さらないように丸く面取りされている。
The push-out member 4 includes a rod 41 that can be inserted into the internal passage 22 of the puncture needle 2 and a plunger 42 that is fixed at a rear position of the rod 41.
The rod 41 is a stainless steel core rod. The front end 411 of the rod 41 is rounded and chamfered so as not to accidentally pierce the skin of an operator or the like.

プランジャ42は、合成樹脂製の芯棒であって、後端部には正面視でT字状に形成されたレバー421を備えている。また、プランジャ42の本体422の外周面には、コ字状に切り欠かれた凹部423を有し、この凹部423の下部424には、係合爪425が斜め上方に突出するように接続されている。この係合爪425の先端部426は、係合爪425の板バネ作用によって本体422の外周面から突出する方向に付勢されている。   The plunger 42 is a core rod made of synthetic resin, and is provided with a lever 421 formed in a T shape in a front view at a rear end portion. Further, the outer peripheral surface of the main body 422 of the plunger 42 has a concave portion 423 cut out in a U-shape, and an engaging claw 425 is connected to a lower portion 424 of the concave portion 423 so as to protrude obliquely upward. ing. The front end 426 of the engagement claw 425 is biased in a direction protruding from the outer peripheral surface of the main body 422 by the leaf spring action of the engagement claw 425.

次に、本実施形態の臓器固定具5の構成について説明する。図3、図4に示すように、臓器固定具5は、棒状の体内係止部51と、体内係止部51の中央に連結された縫合糸52と、板状の固定部材53とを備えている。この固定部材53の中心には、縫合糸52を通す糸通孔54が設けられ、縫合糸52の後端は、固定部材53の裏から糸通孔54へ挿通されている。   Next, the configuration of the organ fixing tool 5 of the present embodiment will be described. As shown in FIGS. 3 and 4, the organ fixing device 5 includes a rod-shaped body locking portion 51, a suture thread 52 connected to the center of the body locking portion 51, and a plate-shaped fixing member 53. ing. A thread passage hole 54 through which the suture thread 52 is passed is provided at the center of the fixing member 53, and the rear end of the suture thread 52 is inserted from the back of the fixing member 53 into the thread passage hole 54.

次に、図3、図4を参照して、本実施形態の臓器固定具用挿入補助具1の使用方法について説明する。   Next, with reference to FIG. 3, FIG. 4, the usage method of the insertion auxiliary tool 1 for organ fixing devices of this embodiment is demonstrated.

まず、図3に示すように、体内係止部51を穿刺針2の針先21から収納部24に挿入し、体内係止部51に連結された縫合糸52を穿刺針2のスリット23から引き出し、引き出された縫合糸52を、シリコーンバンド6でシリンダ3の外周面に留めて置く。   First, as shown in FIG. 3, the internal locking portion 51 is inserted into the storage portion 24 from the needle tip 21 of the puncture needle 2, and the suture thread 52 connected to the internal locking portion 51 is inserted from the slit 23 of the puncture needle 2. The pulled-out suture thread 52 is put on the outer peripheral surface of the cylinder 3 with the silicone band 6.

このとき、係合爪425の先端部426が後端側係合穴32に係合され、ロッド41の前端部411は、体内係止部51の収納スペース(穿刺針2の収納部24)に突入しない位置で係止されている。これにより、意図しない押出部材4の前方移動によって、体内係止部51が穿刺針2の針先21から飛び出すことはない。   At this time, the front end portion 426 of the engagement claw 425 is engaged with the rear end side engagement hole 32, and the front end portion 411 of the rod 41 is placed in the storage space of the internal locking portion 51 (the storage portion 24 of the puncture needle 2). It is locked at a position where it does not enter. As a result, the in-body locking portion 51 does not jump out of the needle tip 21 of the puncture needle 2 due to an unintended forward movement of the push-out member 4.

また、この位置では、係合爪425の先端部426が後端側係合孔32の上部321に当接され、押出部材4の後方移動が規制されているので、仮に、術者がレバー421を後方へ引っ張った場合であっても、押出部材4がシリンダ3の後端部から抜けることはない。   Further, at this position, the distal end portion 426 of the engagement claw 425 is brought into contact with the upper portion 321 of the rear end side engagement hole 32 and the rearward movement of the push-out member 4 is restricted. Even when pulled backward, the pushing member 4 does not come out of the rear end of the cylinder 3.

次に、図4(a)に示すように、臓器固定具5が取り付けられた穿刺針2を、患者の体外から皮膚側壁7及び胃壁8を貫通するまで穿刺し、胃内に穿刺針2の針先21を露出させる。このとき、針先21が胃内に露出されたか否かは、例えば、患者の口から挿入された内視鏡等により確認する。   Next, as shown in FIG. 4A, the puncture needle 2 to which the organ fixing device 5 is attached is punctured from outside the patient's body until it penetrates the skin side wall 7 and the stomach wall 8, and the puncture needle 2 is inserted into the stomach. The needle tip 21 is exposed. At this time, whether or not the needle tip 21 is exposed in the stomach is confirmed by, for example, an endoscope inserted from the patient's mouth.

次に、レバー421を所定値以上の力で前方へ押し込むと、係合爪425の傾斜面427は、後端側係合孔32の下部322に当接され、係合爪425の付勢力に抗して径方向内方に押し下げられる。これにより、係合爪425の先端部426は、後端側係合孔32の上部321から外れてシリンダ3の内部通路31へと移動し、シリンダ3と押出部材4との係止状態が解除され、押出部材4は前方移動が可能となる。   Next, when the lever 421 is pushed forward with a force equal to or greater than a predetermined value, the inclined surface 427 of the engagement claw 425 comes into contact with the lower portion 322 of the rear end side engagement hole 32, and the urging force of the engagement claw 425 is applied. It is pushed down radially inward. As a result, the front end portion 426 of the engagement claw 425 moves away from the upper portion 321 of the rear end side engagement hole 32 and moves to the internal passage 31 of the cylinder 3, and the locked state between the cylinder 3 and the pushing member 4 is released. Thus, the pushing member 4 can be moved forward.

さらにレバー421を前方へ押し込むと、図4(b)に示すように、ロッド41の前端部411は、穿刺針2の針先21よりも前方へ突出され、体内係止部51は、穿刺針2の針先21から押し出されて患者の胃内に投入される。   When the lever 421 is further pushed forward, as shown in FIG. 4B, the front end portion 411 of the rod 41 protrudes forward from the needle tip 21 of the puncture needle 2, and the internal locking portion 51 is formed by the puncture needle. 2 is pushed out of the needle tip 21 and put into the stomach of the patient.

このとき、前端側係合穴33が係合爪425の先端部426に係合され、ロッド41の前端部411は、穿刺針2の針先21よりも前方へ突出した位置で係止されている。さらに、この位置では、係合爪425の先端部426が前端側係合孔33の上部331に当接され、押出部材4の後方移動が規制されているので、ロッド41の前端部411が穿刺針2の針先21よりも後方へ移動し、誤って針先21が露出される心配がない。これにより、医療従事者や廃棄を行う作業者に誤って穿刺針2の針先21が刺さる誤刺を防止することができる。   At this time, the front end side engagement hole 33 is engaged with the distal end portion 426 of the engagement claw 425, and the front end portion 411 of the rod 41 is locked at a position protruding forward from the needle tip 21 of the puncture needle 2. Yes. Further, at this position, the front end portion 426 of the engagement claw 425 is brought into contact with the upper portion 331 of the front end side engagement hole 33 and the rearward movement of the pushing member 4 is restricted, so that the front end portion 411 of the rod 41 is punctured. There is no fear of the needle tip 21 being accidentally exposed by moving backward from the needle tip 21 of the needle 2. As a result, it is possible to prevent erroneous piercing of the needle tip 21 of the puncture needle 2 accidentally by a medical worker or a worker who performs disposal.

また、この位置では、シリンダ3の底部34がプランジャ42の前端部428に当接され、押出部材4の前方移動が規制されているので、ロッド41の前端部411が突出しすぎることはない。   Further, at this position, the bottom 34 of the cylinder 3 is brought into contact with the front end 428 of the plunger 42 and the forward movement of the pushing member 4 is restricted, so that the front end 411 of the rod 41 does not protrude too much.

次に、縫合糸52をシリコーンバンド6から取り外し、患者から臓器固定具用挿入補助具1を離脱させる。そして、縫合糸52を体外から引っ張ることで、体内係止部51が胃壁7を皮膚側壁8に引き寄せ、図4(c)に示すように、縫合糸52を固定部材53で係止し胃壁7を皮膚側壁8に固定する。   Next, the suture thread 52 is removed from the silicone band 6, and the organ fixing tool insertion aid 1 is removed from the patient. Then, by pulling the suture thread 52 from outside the body, the internal locking part 51 pulls the stomach wall 7 toward the skin side wall 8, and the suture thread 52 is locked by the fixing member 53 as shown in FIG. Is fixed to the skin side wall 8.

以上、本発明の実施形態について図面を参照して説明したが、本発明はこれに限定されない。例えば、上記実施形態では、縫合糸52をシリンジ3に留めて置くためにシリコーンバンド6を用いたが、サージカルテープなどの粘着テープを用いてもよい。また、上記実施形態では、係合穴32、33は、シリンダ3の周壁部を貫通する貫通孔であるが、貫通孔でなくてもよい。具体的には、係合穴32、33は、シリンジ3の内周面を切り欠いた凹部であってもよい。これによれば、手動でシリンジ3の外周面から係合爪425を操作して、シリンジ3と押出部材4との係止状態を解除することが不可能なので、本発明の再使用を避けることができる。   As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, in the above embodiment, the silicone band 6 is used to hold the suture 52 on the syringe 3, but an adhesive tape such as a surgical tape may be used. Moreover, in the said embodiment, although the engagement holes 32 and 33 are the through-holes which penetrate the surrounding wall part of the cylinder 3, they may not be a through-hole. Specifically, the engagement holes 32 and 33 may be recesses formed by cutting out the inner peripheral surface of the syringe 3. According to this, it is impossible to release the locked state between the syringe 3 and the pushing member 4 by manually operating the engaging claw 425 from the outer peripheral surface of the syringe 3, and thus avoid reusing the present invention. Can do.

1…臓器固定具用挿入補助具、 2…穿刺針、 3…シリンダ、 32…後端側係合孔、 33…前端側係合孔、 4…押出部材、 41…ロッド、 42…プランジャ、 5…臓器固定具、 425…係合爪。
DESCRIPTION OF SYMBOLS 1 ... Insertion aid for organ fixing tools, 2 ... Puncture needle, 3 ... Cylinder, 32 ... Rear end side engagement hole, 33 ... Front end side engagement hole, 4 ... Extrusion member, 41 ... Rod, 42 ... Plunger, 5 ... organ fixtures, 425 ... engaging claws.

Claims (3)

棒状の体内係止部と、前記体内係止部の中央に連結された縫合糸とからなる臓器固定具を体内へ挿入するために使用する臓器固定具用挿入補助具であって、
患者に穿刺する方向を前方、患者から離れる方向を後方としたときに、
前記体内係止部が前方位置に収納された状態で患者の体内へ穿刺可能であり、内部に軸方向に連通する第1通路を有する穿刺針と、前記穿刺針の後方位置に固定され、内部に軸方向に前記第1通路と連通する第2通路を有するシリンダと、前記第1通路及び前記第2通路に挿通され、前記穿刺針に収納された体内係止部を押し出し可能な押出部材とを備えるものにおいて、
前記押出部材は、前記体内係止部を前記穿刺針の前方位置に収納可能な第1位置と、前記体内係止部を前記穿刺針から体内へ押し出すとともに、前端部が前記穿刺針の前端部よりも前方へ突出する第2位置とで係止され、
外部操作により前記第1位置から前記第2位置へ移動可能に設けられていることを特徴とする臓器固定具用挿入補助具。
An insertion support for an organ fixing device used for inserting an organ fixing device composed of a rod-shaped body locking portion and a suture thread connected to the center of the body locking portion, into the body,
When the direction to puncture the patient is the front and the direction away from the patient is the back,
A puncture needle having a first passage that communicates in the axial direction with a puncture needle that can be punctured into the patient's body in a state where the body locking portion is housed in a front position, and is fixed at a rear position of the puncture needle, A cylinder having a second passage that communicates with the first passage in the axial direction, and a push-out member that is inserted into the first passage and the second passage and can push out the internal locking portion housed in the puncture needle. In what comprises
The push-out member includes a first position where the internal locking portion can be accommodated in a front position of the puncture needle, and the internal locking portion is pushed out from the puncture needle into the body, and a front end portion is a front end portion of the puncture needle And locked in the second position protruding forward,
An insertion assisting tool for an organ fixing tool, which is provided so as to be movable from the first position to the second position by an external operation.
前記押出部材には、外周面から突出する方向に突没自在に付勢された係合爪が設けられ、前記シリンダの周壁部には、前記係合爪に係合して前記押圧部材を前記第1位置に係止する第1係合穴と、前記第2位置に係止する第2係合穴が設けられ、
前記第1係合穴は、前記押出部材の後方移動を規制するとともに、前記押出部材の前方移動を、前記押出部材の前方へ加わる力が所定値未満であれば規制し、所定値以上であれば許容するように前記係合爪と係合され、
前記第2係合穴は、少なくとも前記押出部材の後方移動を規制するように係合爪と係合されていることを特徴とする請求項1記載の臓器固定具用挿入補助具。
The pushing member is provided with an engaging claw that is urged so as to protrude and retract in a direction protruding from the outer peripheral surface, and the pressing member is engaged with the engaging claw on the peripheral wall portion of the cylinder. A first engagement hole for locking in the first position and a second engagement hole for locking in the second position;
The first engagement hole restricts the rearward movement of the push-out member and restricts the forward movement of the push-out member if the force applied to the front of the push-out member is less than a predetermined value. Engaged with the engaging claw to allow
2. The organ fixation tool insertion assisting device according to claim 1, wherein the second engagement hole is engaged with an engagement claw so as to restrict at least a backward movement of the push-out member.
前記シリンダには、外周面を周回するように溝が形成され、前記溝には、輪状に形成された弾性部材が嵌合され、
前記体内係止部が前記穿刺針の前方位置に収納された状態で、前記穿刺針の前端部から引き出された前記縫合糸が、前記溝と前記弾性部材との間に挟まれて留められていることを特徴とする請求項1又は2に記載の臓器固定具用挿入補助具。
A groove is formed in the cylinder so as to go around the outer peripheral surface, and an elastic member formed in a ring shape is fitted into the groove,
The suture thread pulled out from the front end portion of the puncture needle is clamped between the groove and the elastic member in a state where the internal locking portion is housed in the front position of the puncture needle. The organ assisting insertion assisting device according to claim 1 or 2, wherein the organ assisting device is an insertion assisting device.
JP2010052102A 2010-03-09 2010-03-09 Insertion assist tool for organ fixation device Pending JP2011182986A (en)

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WO2014129554A1 (en) * 2013-02-22 2014-08-28 住友ベークライト株式会社 Repeating-type organ-fastening tool
JP2015142617A (en) * 2014-01-31 2015-08-06 住友ベークライト株式会社 Repeating type organ fixing device
JP2015142620A (en) * 2014-01-31 2015-08-06 住友ベークライト株式会社 Organ fixing device
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Publication number Priority date Publication date Assignee Title
JP2013144012A (en) * 2012-01-13 2013-07-25 Fujifilm Corp Tissue collecting apparatus
WO2014129554A1 (en) * 2013-02-22 2014-08-28 住友ベークライト株式会社 Repeating-type organ-fastening tool
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