Skull implant type medication injection port

Patent metadata

Field	Value
Publication number	US-10099046-B2
Application number	US-201415027018-A
Country	US
Kind code	B2
Filing date	Sep 30, 2014
Priority date	Oct 8, 2013
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

A skull implant medication injection port comprises: a mounted portion placed on an upper section of a port insertion hole in a patient's cranium and a medication inlet on a top surface; a medication injection diaphragm that seals the medication inlet of the mounted portion where a needle for injecting a medication is inserted; a medication storage portion coupled with a bottom of the mounted portion stores the medication injected through the medication injection diaphragm; a medication discharge pipe connected to the medication storage portion discharges the medication stored in the medication storage portion; and a rib formed on a perimeter between the mounted portion and the medication storage portion that has a diameter larger than an inner diameter of the port insertion hole. A height of the mounted portion is generally about 4 to 7 mm, and a height of the medication storage portion is generally about 2 to 4.2 mm.

First claim

The invention claimed is:

1. A skull implant type medication injection port comprising:
a mounted portion which is placed on the upper section of a port insertion hole formed in a patient's cranium and comprises a medication inlet formed on a top surface;
a medication injection diaphragm configured to seal the medication inlet of the mounted portion into which an injection needle for injecting a medication is inserted;
a medication storage portion which is coupled with a bottom of the mounted portion and stores the medication injected through the medication injection diaphragm;
a medication discharge pipe connected to the medication storage portion to discharge the medication stored in the medication storage portion; and
a rib which is formed on a perimeter between the mounted portion and the medication storage portion and has a diameter larger than an inner diameter of the port insertion hole,
wherein a height ratio of the mounted portion to the medication storage portion based on the rib is 1:0.5 to 0.6, wherein a height of the mounted portion is 4 to 7 mm, and a height of the medication storage portion is 2 to 4.2 mm, wherein an appropriate total height of the skull implant type medication injection port is 8 to 12 mm.

2. The skull implant type medication injection port of claim 1 , wherein a diameter of the mounted portion is gradually reduced toward a top end surface.

3. The skull implant type medication injection port of claim 1 , wherein the medication injection diaphragm is formed of silicone.

4. The skull implant type medication injection port of claim 1 , wherein a top end surface and a bottom end surface of the medication storage portion have substantially identical diameters.

5. The skull implant type medication injection port of claim 1 , wherein the rib comprises at least one fixing hole to fix the mounted portion to a scalp using a strap or to directly fix the mounted portion to the cranium using a medical screw.

6. A skull implant type medication injection system comprising:
the skull implant type medication injection port according to claim 1 ; and
a guide needle which passes through a medication injection diaphragm of skull implant type medication injection port and is detachably attached to a medication discharge pipe,
wherein the guide needle comprises a stepped portion formed in an area spaced apart from cutting edge portions by predetermined intervals.

7. The skull implant type medication injection system of claim 6 , wherein the guide needle has a bottom cross section with a diameter formed smaller than an inner diameter of the medication discharge pipe based on the stepped portion.

8. The skull implant type medication injection system of claim 6 , wherein a top end of the guide needle has a larger diameter than that of a bottom end.

9. A method of implanting a skull implant type medication injection port, comprising:
(a) forming a port insertion hole in a patient's cranium;
(b) allowing a guide needle to pass through a medication injection diaphragm of the medication injection port according to claim 1 , and to be inserted into the medication discharge pipe to prepare an implantation of the medication injection port;
(c) holding the prepared medication injection port by the port insertion hole and moving the guide needle forward; and
(d) removing the guide needle from the medication injection port and implanting the medication injection port.

10. The method of claim 9 , further comprising fixing the implanted medication injection port and then suturing the upper section of the medication injection port.

Assignees

• Nat Cancer Ct

Inventors

• Lee Seung Hoon
• Gwak Ho-Shin
• Kim Kwang Gi
• Shin Sang-Hoon
• Yoo Heon
• Lee Jin Soo

Classifications

• A61M2039/0276

  for introducing or removing fluids into or out of the body · CPC title

• A61M2039/0223

  having means for anchoring the subcutaneous access site · CPC title

• A61M2039/0282

  with implanted tubes connected to the port · CPC title

• A61M39/0247 Primary

  Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body (peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053) · CPC title

• A61M2039/0205

  for injecting media · CPC title