WordNet

a protective covering (as for a knife or sword)
an enveloping structure or covering enclosing an animal or plant organ or part (同)case
protective covering consisting, for example, of a layer of boards applied to the studs and joists of a building to strengthen it and serve as a foundation for a weatherproof exterior (同)overlay, overlayer
enclosed in a protective covering; sometimes used in combination; "his sheathed sword"; "the cats sheathed claws"; "a ships bottom sheathed in copper"; "copper-sheathed"
of or relating to or near the femur or thigh

PrepTutorEJDIC

(刀などの)さや / (動・植物のある部分をおおう)さや;(ケーブルの)鎧装(がいそう)など・体にぴったり合った女性の衣服
さやに納めること / おおい,被覆

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/06/25 03:05:15」(JST)

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The femoral sheath (crural sheath) is formed by a prolongation downward, behind the inguinal ligament, of the fasciæ which line the abdomen, the transversalis fascia being continued down in front of the femoral vessels and the iliac fascia behind them.

The sheath assumes the form of a short funnel, the wide end of which is directed upward, while the lower, narrow end fuses with the fascial investment of the vessels, about 4 cm. below the inguinal ligament.

It is strengthened in front by a band termed the deep crural arch.

The lateral wall of the sheath is vertical and is perforated by the lumboinguinal nerve; the medial wall is directed obliquely downward and lateralward, and is pierced by the great saphenous vein and by some lymphatic vessels.

The sheath is divided by two vertical partitions which stretch between its anterior and posterior walls.

The lateral compartment contains the femoral artery, and the intermediate the femoral vein, while the medial and smallest compartment is named the femoral canal, and contains some lymphatic vessels and a lymph gland imbedded in a small amount of areolar tissue.

The femoral canal is conical and measures about 1.25 cm. in length. Its base, directed upward and named the femoral ring, is oval in form, its long diameter being directed transversely and measuring about 1.25 cm.

The femoral ring is bounded in front by the inguinal ligament, behind by the Pectineus covered by the pectineal fascia, medially by the crescentic base of the lacunar ligament, and laterally by the fibrous septum on the medial side of the femoral vein. It is through this femoral ring, that the intestines can protrude to form femoral hernia.

The spermatic cord in the male and the round ligament of the uterus in the female lie immediately above the anterior margin of the ring, while the inferior epigastric vessels are close to its upper and lateral angle.

The femoral ring is closed by a somewhat condensed portion of the extraperitoneal fatty tissue, named the septum femorale (crural septum), the abdominal surface of which supports a small lymph gland and is covered by the parietal layer of the peritoneum.

The septum femorale is pierced by numerous lymphatic vessels passing from the deep inguinal to the external iliac lymph glands, and the parietal peritoneum immediately above it presents a slight depression named the femoral fossa.

Additional Images

Femoral sheath

External links

Photo and overview at gla.ac.uk
Diagram at duj.com
antthigh at The Anatomy Lesson by Wesley Norman (Georgetown University)
Diagram at washington.edu

This article incorporates text from a public domain edition of Gray's Anatomy.

UpToDate Contents

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1. 大腿静脈カテーテルの留置 placement of femoral venous catheters
2. 成人における鼠径ヘルニアおよび大腿ヘルニアに対する治療の概要 overview of treatment for inguinal and femoral hernia in adults
3. 成人における鼠径ヘルニアおよび大腿ヘルニアの開放修復術 open surgical repair of inguinal and femoral hernia in adults
4. 鼠径ヘルニアおよび大腿ヘルニアの分類、臨床症状、および診断 classification clinical features and diagnosis of inguinal and femoral hernias in adults
5. 中心静脈アクセスの概要 overview of central venous access

English Journal

Comparison of ultrasound-guided and fluoroscopy-assisted antegrade common femoral artery puncture techniques.

Slattery MM1, Goh GS, Power S, Given MF, McGrath FP, Lee MJ.
Cardiovascular and interventional radiology.Cardiovasc Intervent Radiol.2015 Jun;38(3):579-82. doi: 10.1007/s00270-014-0998-7. Epub 2014 Oct 24.
PURPOSE: To prospectively compare the procedural time and complication rates of ultrasound-guided and fluoroscopy-assisted antegrade common femoral artery (CFA) puncture techniques.MATERIALS AND METHODS: Hundred consecutive patients, undergoing a vascular procedure for which an antegrade approach wa
PMID 25338833

Percutaneous endovascular salvage techniques for implanted venous access device dysfunction.

Breault S1, Glauser F, Babaker M, Doenz F, Qanadli SD.
Cardiovascular and interventional radiology.Cardiovasc Intervent Radiol.2015 Jun;38(3):642-50. doi: 10.1007/s00270-014-0968-0. Epub 2014 Sep 6.
PURPOSE: Implanted venous access devices (IVADs) are often used in patients who require long-term intravenous drug administration. The most common causes of device dysfunction include occlusion by fibrin sheath and/or catheter adherence to the vessel wall. We present percutaneous endovascular salvag
PMID 25192947

A balloon-expandable sheath facilitates transfemoral TAVR in patients with peripheral vascular disease and tortuosity.

Goldsweig AM1, Faheem O1, Cleman MW1, Forrest JK2.
Therapeutic advances in cardiovascular disease.Ther Adv Cardiovasc Dis.2015 Jun;9(3):95-102. Epub 2015 Mar 16.
OBJECTIVES: We sought to perform transcatheter aortic valve replacement (TAVR) via the transfemoral approach in patients with peripheral arterial disease (PAD), small caliber ileofemoral vessels and vascular tortuosity.BACKGROUND: For patients with increased surgical risk, TAVR is associated with a
PMID 25784499

Japanese Journal

Carotid artery stenting via a femoral bypass graft: technical note.

Hayashi Kentaro,Kitagawa Naoki,Takai Hideaki,Nagata Izumi
Surgical neurology 71(6), 720-724, 2009-06
… BACKGROUND: We described a case of endoluminal stent placement for a cervical internal carotid artery stenosis in which access was obtained via the femoral bypass graft. … Bilateral femoral artery was replaced with bypass graft because of atherosclerosis obliterans. … An alternative approach was attempted via the exposed left femoral bypass graft. … The left inguinal region was incised, and the left common femoral-popliteal bypass graft was exposed. …
NAID 120001506797