WO2007013912A2 - Pin site wound protection system - Google Patents

Pin site wound protection system Download PDF

Info

Publication number
WO2007013912A2
WO2007013912A2 PCT/US2006/028004 US2006028004W WO2007013912A2 WO 2007013912 A2 WO2007013912 A2 WO 2007013912A2 US 2006028004 W US2006028004 W US 2006028004W WO 2007013912 A2 WO2007013912 A2 WO 2007013912A2
Authority
WO
WIPO (PCT)
Prior art keywords
pin
sponge
clip
protection system
arm
Prior art date
Application number
PCT/US2006/028004
Other languages
French (fr)
Other versions
WO2007013912A3 (en
Inventor
Harry Lee
Joshua Reardon
Dror Paley
Original Assignee
3D Medical Concepts, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3D Medical Concepts, Llc filed Critical 3D Medical Concepts, Llc
Priority to US11/995,757 priority Critical patent/US8216288B2/en
Publication of WO2007013912A2 publication Critical patent/WO2007013912A2/en
Publication of WO2007013912A3 publication Critical patent/WO2007013912A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F15/00—Auxiliary appliances for wound dressings; Dispensing containers for dressings or bandages
    • A61F15/006—Bandage fasteners
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices

Definitions

  • the present invention relates to medical devices, and more particularly, to a surgical dressing for covering the entry or exit site of a surgical pin or surgical wire.
  • pins may be integral components of complex fixation systems, and may remain in position for several days, weeks, or even months, depending upon the severity of the injury and other factors. Examples of prior art pin site wound protection systems are described in U.S. Patent Nos. 4943293 and 5360020, the disclosures of which are incorporated herein by reference.
  • the present invention seeks to overcome the foregoing deficiencies by providing an inexpensive pin site wound protection system designed for single- handed manipulation and to allow rapid changing of wound dressings.
  • the present invention is an improved disposable pin site wound protection system for covering the entry or exit site of a surgical pin such as a halo pin, external fixation pin, traction pin, or surgical wire, wherein the system substantially reduces the time required to change a dressing at a pin site wound.
  • the invention comprises a sponge and clip, both of which are designed to be attached to a pin adjacent a wound.
  • the clip when compressed, crosses the legs of the clip and when released will attach to the full-range of external fixation pins and wires.
  • This reverse action of the clip, opening when compressed and closing when released, is a self-closing and self-holding clip that can be applied and removed with one hand.
  • the clip allows pressure against the sponge for immediate post-operative cessation of bleeding at the pin site and can be backed off to vary the pressure according to the stage of healing.
  • the sponge is preferably cylindrical or hemispherical in shape, and may include a spiral cut to resist accidental displacement from the pin.
  • the sponge may be of various medical grade materials and may or may not be impregnated with antiseptic or other anti-pathogenic agents.
  • FIG. 1 is a right side elevational view of the clip of the present invention.
  • FIG. 2 is a left side elevational view of the clip.
  • FIG. 3 is a top plan view of the clip.
  • FIG. 4 is a bottom view of the clip.
  • FIG. 5 is an illustrative view of the clip prior to compression.
  • FIG. 6 is an illustrative view of the clip after compression.
  • FIG. 7 is a perspective view of the clip after compression.
  • FIG. 8 is a perspective view of the clip secured to a pin adjacent a sponge.
  • FIG. 9A is a front elevational view of a cylindrical sponge.
  • FIG. 9B is a side view of a cylindrical sponge.
  • FIG. 1OA is a front elevational view of a hemispherical sponge.
  • FIG. 1OB is a side view of a hemispherical sponge.
  • the present invention comprises a sponge 11 and a clip 21, both of which are designed to be attached to a pin 15 adjacent a wound.
  • the sponge 11 may have any prior art design, such as a cylindrical design (FIGS. 9A-9B), or the sponge 11 may be hemispherical (FIGS. 10A- 10B).
  • a hemispherical sponge allows pressure to be applied to the pin exit site by the spherical side of the sponge or, alternatively, the sponge could be turned around so the flat side would disperse pressure over a wider area.
  • the sponge 11 may include a spiral cut 12, shown in the hemispherical sponge in FIGS. 10A-10B, to resist accidental displacement from the pin 15.
  • a spiral cut sponge the sponge is twisted onto the pin 15 until the pin 15 is within the central axial opening 13 through the sponge.
  • the spiral cut may be in other shaped sponges as well.
  • the preferred clip is a reverse action clip preferably comprising unitary molded plastic because it is a single-piece structure that is inexpensive to manufacture, not requiring assembly or a secondary manufacturing operation, and it will clamp securely to the full range of pin and wire diameters.
  • the clip (FIGS. 1-8) is preferably a pinch-type clip 21 that opens by compressing the C-shaped head 22 of the clip 21 so that the short arm 23 passes through an opening 24 formed in the long arm 25, thereby allowing the pin to be received within a channel 26 formed by opposing semicircular slots 27 formed in the arms 23, 25.
  • the clip face that abuts the sponge 11 has openings adequate to allow access for application of antiseptic, antibiotic, or other medications as prescribed by the patient's physician.
  • a unit of the system will preferably comprise a medical grade clip, preferably made of a plastic such as virgin homopolymer polypropylene, and a cylindrical or hemispherical sponge, preferably made of absorbent hydroxylated polyvinyl acetal or some other absorbable medical grade sponge.
  • the preferred clip is comprised of a unitary molded plastic, other materials such as metal or wire could be used to obtain the same design and function. Further, the clip could be used in other applications.

Abstract

An improved disposable pin site wound protection system for covering the entry or exit site of a surgical pin, wherein the system substantially reduces the time required to change a dressing at a pin site wound. The invention comprises a sponge (11) and clip (21), both of which are designed to be attached to a pin (15) adjacent a wound. The clip (21), when compressed, crosses the legs (23, 25) of the clip and when released will attach to the full-range of external fixation pins and wires. This reverse action of the clip, opening when compressed and closing when released, is a self-closing and self-holding clip that can be applied and removed with one hand. The sponge (11) is preferably cylindrical or hemispherical in shape, and may include a spiral cut (12) to resist accidental displacement from the pin.

Description

PIN SITE WOUND PROTECTION SYSTEM
Technical Field
The present invention relates to medical devices, and more particularly, to a surgical dressing for covering the entry or exit site of a surgical pin or surgical wire.
Background Art
Fixation of severely broken bones frequently requires the use of a plurality of surgical pins, wires, or similar implements inserted radially into the injured limb, with the distal ends protruding outwardly through a patient's skin. Such surgical implements, referred to collectively herein as pins, may be integral components of complex fixation systems, and may remain in position for several days, weeks, or even months, depending upon the severity of the injury and other factors. Examples of prior art pin site wound protection systems are described in U.S. Patent Nos. 4943293 and 5360020, the disclosures of which are incorporated herein by reference.
In order to minimize the risk of infection, it is essential that the wound dressings be regularly changed. Unfortunately, prior art pin site wound protection systems do not allow convenient changing of the wound dressings and are not designed for single-handed application by poly-trauma patients. Further, the appearance of the wound where the surgical pin enters or exits the skin is unsightly, causing psychological trauma in some patients, especially children. As a result of the substantial time required to change such a wound dressing, together with the unappealing appearance of the wound, patient compliance with the prescribed schedule for changing the wound dressing is reduced.
The present invention seeks to overcome the foregoing deficiencies by providing an inexpensive pin site wound protection system designed for single- handed manipulation and to allow rapid changing of wound dressings.
Summary of the Invention
The present invention is an improved disposable pin site wound protection system for covering the entry or exit site of a surgical pin such as a halo pin, external fixation pin, traction pin, or surgical wire, wherein the system substantially reduces the time required to change a dressing at a pin site wound. The invention comprises a sponge and clip, both of which are designed to be attached to a pin adjacent a wound. The clip, when compressed, crosses the legs of the clip and when released will attach to the full-range of external fixation pins and wires. This reverse action of the clip, opening when compressed and closing when released, is a self-closing and self-holding clip that can be applied and removed with one hand. Unlike existing devices, the clip allows pressure against the sponge for immediate post-operative cessation of bleeding at the pin site and can be backed off to vary the pressure according to the stage of healing. The sponge is preferably cylindrical or hemispherical in shape, and may include a spiral cut to resist accidental displacement from the pin. The sponge may be of various medical grade materials and may or may not be impregnated with antiseptic or other anti-pathogenic agents. Brief Description of the Drawings
FIG. 1 is a right side elevational view of the clip of the present invention. FIG. 2 is a left side elevational view of the clip. FIG. 3 is a top plan view of the clip. FIG. 4 is a bottom view of the clip.
FIG. 5 is an illustrative view of the clip prior to compression. FIG. 6 is an illustrative view of the clip after compression. FIG. 7 is a perspective view of the clip after compression. FIG. 8 is a perspective view of the clip secured to a pin adjacent a sponge. FIG. 9A is a front elevational view of a cylindrical sponge.
FIG. 9B is a side view of a cylindrical sponge. FIG. 1OA is a front elevational view of a hemispherical sponge. FIG. 1OB is a side view of a hemispherical sponge.
Best Modes for Carrying Out the Invention
This application claims priority to U.S. Provisional Patent Application No. 60/701346, filed July 21, 2005, the disclosure of which is incorporated herein by reference. The present invention comprises a sponge 11 and a clip 21, both of which are designed to be attached to a pin 15 adjacent a wound. The sponge 11 may have any prior art design, such as a cylindrical design (FIGS. 9A-9B), or the sponge 11 may be hemispherical (FIGS. 10A- 10B). A hemispherical sponge allows pressure to be applied to the pin exit site by the spherical side of the sponge or, alternatively, the sponge could be turned around so the flat side would disperse pressure over a wider area. The sponge 11 may include a spiral cut 12, shown in the hemispherical sponge in FIGS. 10A-10B, to resist accidental displacement from the pin 15. To secure a spiral cut sponge, the sponge is twisted onto the pin 15 until the pin 15 is within the central axial opening 13 through the sponge. The spiral cut may be in other shaped sponges as well. When the clip 21 is compressed, the legs of the clip 21 will cross (FIGS. 6-
7) and when released will attach to the full-range of external fixation pins and wires (FIG. 8). The legs of the clip 21 are biased to uncross (FIGS. 1-2 and 5) so that the clip 21 will grip the pin 15 tightly when the clip 21 is decompressed (FIG. 8). This reverse action of the clip 21, opening when compressed and closing when released, is a self-closing and self-holding clip that can be applied and removed with one hand. While other clips may be used in the present invention, the preferred clip is a reverse action clip preferably comprising unitary molded plastic because it is a single-piece structure that is inexpensive to manufacture, not requiring assembly or a secondary manufacturing operation, and it will clamp securely to the full range of pin and wire diameters.
The clip (FIGS. 1-8) is preferably a pinch-type clip 21 that opens by compressing the C-shaped head 22 of the clip 21 so that the short arm 23 passes through an opening 24 formed in the long arm 25, thereby allowing the pin to be received within a channel 26 formed by opposing semicircular slots 27 formed in the arms 23, 25. The clip face that abuts the sponge 11 has openings adequate to allow access for application of antiseptic, antibiotic, or other medications as prescribed by the patient's physician. A unit of the system will preferably comprise a medical grade clip, preferably made of a plastic such as virgin homopolymer polypropylene, and a cylindrical or hemispherical sponge, preferably made of absorbent hydroxylated polyvinyl acetal or some other absorbable medical grade sponge. Although the preferred clip is comprised of a unitary molded plastic, other materials such as metal or wire could be used to obtain the same design and function. Further, the clip could be used in other applications.
While the invention has been shown and described in some detail with reference to specific exemplary embodiments, there is no intention that the invention be limited to such detail. On the contrary, the invention is intended to include any alternative or equivalent embodiments that fall within the spirit and scope of the invention as described and claimed herein.

Claims

Claims
1. A pin site wound protection system, comprising: a. a pin; b. a sponge; and c. a spring-loaded clip.
2. A pin site wound protection system according to claim 1, wherein said sponge is hemispherical.
3. A pin site wound protection system according to claim 1, wherein said sponge has a spiral cut therein.
4. A pin site wound protection system according to claim 1, wherein said clip comprises a unitary member having a C-shaped head, a short arm having a slot formed in an external surface thereof, and a long arm having at least one slot formed in an external surface thereof and a longitudinal opening through said long arm, wherein said head can be compressed such that said short arm passes through said opening in said long arm, thereby allowing said pin to be received within a channel formed by said slots in said short and long arms.
5. A spring-loaded clip, comprising a unitary member having a C-shaped head, a short arm having a slot formed in an external surface thereof, and a long arm having at least one slot formed in an external surface thereof and a longitudinal opening through said long arm, wherein said head can be compressed such that said short arm passes through said opening in said long arm, thereby allowing a pin to be received within a channel formed by said slots in said short and long arms.
6. A method for securing a sponge to a pin adjacent a wound in a pin site wound protection system, comprising the steps of: a. applying a sponge to said pin adjacent the wound; and b. applying a spring-loaded clip to said pin adjacent said sponge.
7. A method according to claim 6, wherein said sponge is hemispherical.
8. A method according to claim 6, wherein said sponge has a spiral cut therein.
9. A method according to claim 8, wherein said step of applying said spiral cut sponge to said pin requires twisting said sponge onto said pin until said pin is within a central axial opening through said sponge.
10. A method according to claim 6, wherein said clip comprises a unitary member having a C-shaped head, a short arm having a slot formed in an external surface thereof, and a long arm having at least one slot formed in an external surface thereof and a longitudinal opening through said long arm, wherein said head can be compressed such that said short arm passes through said opening in said long arm, thereby allowing said pin to be received within a channel formed by said slots in said short and long arms.
PCT/US2006/028004 2005-07-21 2006-07-19 Pin site wound protection system WO2007013912A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/995,757 US8216288B2 (en) 2005-07-21 2006-07-19 Pin site wound protection system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70134605P 2005-07-21 2005-07-21
US60/701,346 2005-07-21

Publications (2)

Publication Number Publication Date
WO2007013912A2 true WO2007013912A2 (en) 2007-02-01
WO2007013912A3 WO2007013912A3 (en) 2007-04-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/028004 WO2007013912A2 (en) 2005-07-21 2006-07-19 Pin site wound protection system

Country Status (2)

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US (1) US8216288B2 (en)
WO (1) WO2007013912A2 (en)

Cited By (1)

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JP2011505959A (en) * 2007-12-13 2011-03-03 メンリッケ・ヘルス・ケア・アーベー A bandage to protect the skin around the object protruding from the skin

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US8608785B2 (en) 2010-06-02 2013-12-17 Wright Medical Technology, Inc. Hammer toe implant with expansion portion for retrograde approach
US9498273B2 (en) 2010-06-02 2016-11-22 Wright Medical Technology, Inc. Orthopedic implant kit
US9724140B2 (en) 2010-06-02 2017-08-08 Wright Medical Technology, Inc. Tapered, cylindrical cruciform hammer toe implant and method
US10695237B1 (en) 2011-04-23 2020-06-30 Stephen Michael Sanders, JR. Surgical pin compression wound dressing module, device and system
US9730696B2 (en) 2011-04-23 2017-08-15 Stephen Michael Sanders, JR. Surgical pin compression wound dressing device
CA2862563A1 (en) 2012-01-04 2013-07-11 3D Medical Exfix, Llc External fixation system
US8945232B2 (en) 2012-12-31 2015-02-03 Wright Medical Technology, Inc. Ball and socket implants for correction of hammer toes and claw toes
US9724139B2 (en) 2013-10-01 2017-08-08 Wright Medical Technology, Inc. Hammer toe implant and method
US9474561B2 (en) 2013-11-19 2016-10-25 Wright Medical Technology, Inc. Two-wire technique for installing hammertoe implant
US9498266B2 (en) 2014-02-12 2016-11-22 Wright Medical Technology, Inc. Intramedullary implant, system, and method for inserting an implant into a bone
US9545274B2 (en) * 2014-02-12 2017-01-17 Wright Medical Technology, Inc. Intramedullary implant, system, and method for inserting an implant into a bone
JP6235724B2 (en) 2014-09-18 2017-11-22 ライト メディカル テクノロジー インコーポレイテッドＷｒｉｇｈｔ Ｍｅｄｉｃａｌ Ｔｅｃｈｎｏｌｏｇｙ， Ｉｎｃ． Spider toe implant and tool
BR112017000207A2 (en) 2014-12-19 2018-01-16 Wright Medical Tech Inc intramedullary implant and method for surgical repair of an interphalangeal joint
US20190224470A1 (en) * 2015-11-03 2019-07-25 Tariq Chaudhry Catheter clamp
US10517769B2 (en) 2017-02-27 2019-12-31 Christopher Steven Wood Cast portal
CN114126556A (en) * 2019-07-11 2022-03-01 沃莫瑞斯创新公司 Method and apparatus for treating external fixation sites
US11889998B1 (en) * 2019-09-12 2024-02-06 Treace Medical Concepts, Inc. Surgical pin positioning lock

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US4005709A (en) * 1975-04-11 1977-02-01 Laerdal A S Compression bandage
US4556060A (en) * 1982-09-30 1985-12-03 Metatech Corporation Surgical clip
US4747407A (en) * 1985-09-03 1988-05-31 The Field Surgery Research Department of the Third Military Medical University Blood vessel anastomat
US5702388A (en) * 1996-02-20 1997-12-30 Zimmer, Inc. Orthopaedic retainer attachable to an elongate member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011505959A (en) * 2007-12-13 2011-03-03 メンリッケ・ヘルス・ケア・アーベー A bandage to protect the skin around the object protruding from the skin
US8764714B2 (en) 2007-12-13 2014-07-01 Mölnlycke Health Care Ab Dressing for protecting the skin around objects projecting out therefrom

Also Published As

Publication number Publication date
US8216288B2 (en) 2012-07-10
WO2007013912A3 (en) 2007-04-05
US20090149891A1 (en) 2009-06-11

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