CA1157724A - Medical lancet means - Google Patents
Medical lancet meansInfo
- Publication number
- CA1157724A CA1157724A CA000375894A CA375894A CA1157724A CA 1157724 A CA1157724 A CA 1157724A CA 000375894 A CA000375894 A CA 000375894A CA 375894 A CA375894 A CA 375894A CA 1157724 A CA1157724 A CA 1157724A
- Authority
- CA
- Canada
- Prior art keywords
- lancet
- female
- male member
- female member
- male
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Abstract
ABSTRACT
A medical lancet means for puncturing skin is disclosed. The lancet means comprises a moulded lancet retaining male member having an elongate body.
A lancet having a pointed end projects axially from the body at its front end.
A female member has an elongate hollow body with an axial hole adapted to receive the body of the male member through its rear end. The female body is being of such a length, and the lancet is so arranged on the male member that the pointed end of the lancet protrudes a predetermined distance out of the female member at its front end when the male member is fully inserted in the female member to define an operative puncturing position. The male and female members have first engaging stop means arranged to temporarily prevent continued insertion of the male member at a predetermined initial position of the male member in the female member, partial insertion of the male member into the female member. In the initial position, the pointed end of the lancet is located within the female member. The arresting function of the first stop means is overcome by applying pressure on the male member thereby pushing the male member the remaining distance into the female member from the initial position to the operative position.
A medical lancet means for puncturing skin is disclosed. The lancet means comprises a moulded lancet retaining male member having an elongate body.
A lancet having a pointed end projects axially from the body at its front end.
A female member has an elongate hollow body with an axial hole adapted to receive the body of the male member through its rear end. The female body is being of such a length, and the lancet is so arranged on the male member that the pointed end of the lancet protrudes a predetermined distance out of the female member at its front end when the male member is fully inserted in the female member to define an operative puncturing position. The male and female members have first engaging stop means arranged to temporarily prevent continued insertion of the male member at a predetermined initial position of the male member in the female member, partial insertion of the male member into the female member. In the initial position, the pointed end of the lancet is located within the female member. The arresting function of the first stop means is overcome by applying pressure on the male member thereby pushing the male member the remaining distance into the female member from the initial position to the operative position.
Description
The present invention relates to an improved medical lancet means for puncturing the skin of an individual to permit the collection of a drop of blood for diagnostic purposes or the like medical use.
It is known to puncture the skin using a lancet retaining body in combination with a separate mechanical appaTatus including a biased striker mechanism and a device to release the striker. The striker mechanism has a support for mounting the lancet retaining body therein. Such an apparatus is expensive to manufacture and time-consuming in use. When the lancet is mounted in the support there is a danger of the sterile lancet being accidentally touched with the fingers or other objects with the consequent danger of bacterial contamination of the lancet. Furthermore, it is not possible to make the lancet tip invisible for the patient.
According to one aspect of the present invention there is provided a medical lancet means for puncturing skin comprising a moulded lancet retaining male member having an elongate body with a front end and a rear end, a lancet having a pointed end section pro~ecting axially from said body at the front end thereof, and a female member having an oblong hollow body with a front end, a rear end and an axial hole adapted to receive said body of the male member through the rear end of said hollow body, the female body being of such a length and the lancet so arranged on the male member that the pointed end section of the lance~ protrudes a predetermined distance out of the female member at the front end thereof when the male member is inserted in the female member so as to define an operative puncturin~ positlon of the medical lancet means, said male and female members comprising first engaging stop means arranged temporarily to prevent continued insertion of the male member at a predetermined initial position of the male member in the female member with the pointed end section of the lancet being located within the female member, said first stop means being `~;
~ ~5~724 adapted to release upon application of pressure to the male member thereby permitting the male member to be pushed into the female member from said initial position to said operative position.
According to another aspect of the present invention there is provided a method of manufacturing the medical lancet means comprising moulding the male member and female member of plastic material in one piece, the lancet being permanently fixed in the male member and the pointed end section of the lancet being enclosed by portions of the female member to be pro~ected thereby until the moment of use when the male member is severed from the female member by a twisting movement.
In the aCCQmpanying drawings, which illustrate exemplary embodiments of the present invention:
Figure 1 is a side view of a medical lancet means according to one embodiment of the invention in initial position;
Figure 2 is a side view of the means according to Figure 1 in operative pos~tion when in use, Figure 3 is a perspective view of a modified embodiment of the means according to the invention, and Figures 4 and 5 are a side view and top view, respectively of another embodiment of a means according to the invention produced as a unit w~th the lancet unexposed and sterile, but having members which can be separated.
The improved medical lancet means shown in the drawings comprises, in each embodiment, two cooperating members in the form of a male member 1 and a female member 2 both of which are preferably disposable~
The male member comprises an elongate solid, cylindrical rod body 3 and a lancet 5 Gf suitable metal pro3ecting axially from the front end 4 of the rod body. It also comprises a circular pressure plate 7 formed at the rear end ~ 157724 6 of the rod body. The rod body and the pTessure plate are manufactured of a suitable plastic material in one piece, the lancet being moulded into the body at the same time so that it is permanently fixed in the solid rod body and so that a pointed end section 8 thereof projects axially tharefrom. Furthermore, the male member 1 carrying the lancet is provided with a circumferential ridge 9 or the like protrusion to temporarily obstruct movement, as will be explained below.
The female member acting as carrier and guide for the male member comprises an elongate open-ended, cylindrical hollow body 10 and a finger-grip plate 12 formed at the rear end 11 of the body.
In the embodiments shown the body 10 has an axial through hole 13 adapted to slidingly receive the rod body 3 of the male member without friction.
A slight clearance may be permitted between the parts.
The male and female members are so designed with respect to each other that when the male member is fully inserted in the female member the pointed end section 8 of the lancet will project a predetermined distance, usually about 0.5 - 2 mm, out of the female member. In this final and puncturing operative position the pressure plate 7 is in contact with the finger-grip plate 12 or rear end 11. The female member is manufactured of suitable plastîc material, preferably of the same plastic material as the male member.
The medical lancet means also comprises first engaging stop means adapted to temporarily obstruct relative mo~ement of the male and female members s~id stop means comprising a first element arranged on the rod body of the male member at a predetermined distance from the pointed end section 8 of the lancet, and a second element arranged on the female member at a predetermined distance from the front end 14 thereof to engage with said first element. In the embodiments 1 1577~4 shown, the first element consists of the radially prodruding ridge 9. In Figuresl, 2 and 3 the second element consists of a corresponding annular radially inwardly extending ridge 15 on the inner wall or at the entry of the hole 13 in the female member. The ridge 15 of the female member thus forms a constriction of the hole 13 at the entry theTeof so that continued movement of the male member into the female member is prevented, as is illustrated in ~igure 1, since the ridge 9 engages the protrusion 15 of the female member~
~y increasing the pressure with the thumb or other finger on the pressure plate 7 of the male mem~er, this stop is finally overcome so that the male member can be inserted the full length determined by the rod body 3 into the female member, as is illustrated in Figure 2. When this increased pressure is suddenly released by the ridges 9, 15 moving past and out of engagement with each other, the male member acquires an extremely high speed in passing the rest of the distance into the female member until second engaging stop means are reached.
These second stop means thus comprise the pressure plate 7 of the male member and the rear end 11 of the female member. ~his in turn means that the pointed end section 8 of the lancet is pushed out of the female member at a correspond-ingly high speed, rapidly penetrating the skin and the blood vessels beneath. It will be understood that the front end 14 of the female member will be in contact w~th the skin at least from the point when the pressure is increased on the male member a~ter the temporary engagement of the first stop means has been reached.
Since the lancet acquires a high speed upon the sudden release and pushing in of the male member, the pointed end section of the lancet will penetrate the skin extremely quickly. It has been found that, thanks ~o this, the sensation of pain is extremely slight and brief.
The rid~e g on the male member ls placed at a specific point on the rod bod~ 3 so that the distance between the ridge 9 and the pointed end section 8 of the lancet is the same as and preferably slightly less than the distance between the front end 14 of the female member and the stop rldge 15. It is thus ensured that the pointed end section 8 of the lancet will not be visible from the side when the first stop means is temporarily in engagement, provided the female member is made of opaque plastic, which is preferred~ It is believed that it is of great psrchological significance for many patients that the lancet is inv~sible.
~f desired, the female member ma~ be provided with a slit 19 at its rear end 11, to enable the entry to the hole 13 to expand upon application of pressure on the male member. Such an embodiment is illustrated in Figure 3.
The medical lancet means can preferably be made in one piece, the male member and female member being in an integral piece or unit 16 and easily severable from each other at the moment of use. Such a un~t is shown in ~igures4 and 5. The unit is in~ection moulded so that the pointed end section of the lancet is located in the finger-grip plate 12 of the famle member and directed radially therein. A slight twist of the male member will separate this ~rom the female member at the thin and frangible connection 17 which surrounds a small portion of the lancet. The lancet being moulded in this manner, it is completely protected and sterile up to the moment of use and, moreover, by an operative member, i.e. the female member, of the medical lancet means. Thus, no special protection element which must then be discarded, is required for the lancet. In the embod;ment according to Figures 4 and 5, the female member has been provided with three evenly distributed ridges or protusions 1~ for co~peration with the protrusion 9 of the male member to form the first stop means.
~nstead of placing the male and female members at right angles, as 1 1577~4 shown in Pigure 4, they may be moulded to form an elongate unit, the pointed end section of the lancet being enclosed in the finger-grlp plate 12 from above and, if necessary, in extra material under the plate.
The plastic material used for the medical lancet means should be free from foreign substances, for example of a quality approved for foodstuffs. Thus, plasticized organic polymeric compositions, such as a polyvinyl chloride, polyethylene, polypropylene and the like plastic materials, are well suited for moulding the medical lancet means. The lancet is made of special stainless steel~
By means of a special technique it has been found unnecessary to provide the lancet with any grindings, such as grooves or external attachment means which are normal for the attachment of a lancet or other steel object in a plastic body. This new technique entails washing the lancet with alcohol or alcohol solution prior to its automatic insertion in the plastic in~ection moulding tool, and preventing contact of the lancet with fat or oil after washing.
To ensure secure accurate moulding of the lancet into the male member, the injection moulding tool may comprise three radially directed holder elements which support the automatically inserted lancet from two opposite directions, such as from below and above, corresponding radial slits being formed in the moulded male member.
The stop means which act last, i.e. the second stop means which are formed in the embodiments shown by the pressure plate 7 of the male member and the rear end 11 of the female member, may according to an alternative embodiment be formed by the front end 4 of the male member and an inner shoulder or ridge in the female member. The shoulder or ridge is formed by a bottom section in the female member, the hole 13 thereof terminating at a distance from the front end of the female member. A small diameter central hole is made in the bottom section for passage of the pointed end of the lancet.
~ 157724 According to a further embodiment, not shown, the male member is provided w~th a device which prevents the male member from falling out of the female member when the medical lancet means is in its initial position prepared for use. Such a device may comprise a protrusion, ridge, step or similar stop means formed on rod body 3 between front end 4 and ridge 9 and adapted to engage with ridge 15 or 18 of the female member after partial insertion of the male member into the female member.
As mentioned, the lancet may consist of a suitable metal. However, it may also consist of some other suitable material if desired. The lancet may, for instance, consist of a suitable plastic material and according to such an embodiment the lancet is moulded as an integral part of the male member, i.e. of the same plastic material.
It is known to puncture the skin using a lancet retaining body in combination with a separate mechanical appaTatus including a biased striker mechanism and a device to release the striker. The striker mechanism has a support for mounting the lancet retaining body therein. Such an apparatus is expensive to manufacture and time-consuming in use. When the lancet is mounted in the support there is a danger of the sterile lancet being accidentally touched with the fingers or other objects with the consequent danger of bacterial contamination of the lancet. Furthermore, it is not possible to make the lancet tip invisible for the patient.
According to one aspect of the present invention there is provided a medical lancet means for puncturing skin comprising a moulded lancet retaining male member having an elongate body with a front end and a rear end, a lancet having a pointed end section pro~ecting axially from said body at the front end thereof, and a female member having an oblong hollow body with a front end, a rear end and an axial hole adapted to receive said body of the male member through the rear end of said hollow body, the female body being of such a length and the lancet so arranged on the male member that the pointed end section of the lance~ protrudes a predetermined distance out of the female member at the front end thereof when the male member is inserted in the female member so as to define an operative puncturin~ positlon of the medical lancet means, said male and female members comprising first engaging stop means arranged temporarily to prevent continued insertion of the male member at a predetermined initial position of the male member in the female member with the pointed end section of the lancet being located within the female member, said first stop means being `~;
~ ~5~724 adapted to release upon application of pressure to the male member thereby permitting the male member to be pushed into the female member from said initial position to said operative position.
According to another aspect of the present invention there is provided a method of manufacturing the medical lancet means comprising moulding the male member and female member of plastic material in one piece, the lancet being permanently fixed in the male member and the pointed end section of the lancet being enclosed by portions of the female member to be pro~ected thereby until the moment of use when the male member is severed from the female member by a twisting movement.
In the aCCQmpanying drawings, which illustrate exemplary embodiments of the present invention:
Figure 1 is a side view of a medical lancet means according to one embodiment of the invention in initial position;
Figure 2 is a side view of the means according to Figure 1 in operative pos~tion when in use, Figure 3 is a perspective view of a modified embodiment of the means according to the invention, and Figures 4 and 5 are a side view and top view, respectively of another embodiment of a means according to the invention produced as a unit w~th the lancet unexposed and sterile, but having members which can be separated.
The improved medical lancet means shown in the drawings comprises, in each embodiment, two cooperating members in the form of a male member 1 and a female member 2 both of which are preferably disposable~
The male member comprises an elongate solid, cylindrical rod body 3 and a lancet 5 Gf suitable metal pro3ecting axially from the front end 4 of the rod body. It also comprises a circular pressure plate 7 formed at the rear end ~ 157724 6 of the rod body. The rod body and the pTessure plate are manufactured of a suitable plastic material in one piece, the lancet being moulded into the body at the same time so that it is permanently fixed in the solid rod body and so that a pointed end section 8 thereof projects axially tharefrom. Furthermore, the male member 1 carrying the lancet is provided with a circumferential ridge 9 or the like protrusion to temporarily obstruct movement, as will be explained below.
The female member acting as carrier and guide for the male member comprises an elongate open-ended, cylindrical hollow body 10 and a finger-grip plate 12 formed at the rear end 11 of the body.
In the embodiments shown the body 10 has an axial through hole 13 adapted to slidingly receive the rod body 3 of the male member without friction.
A slight clearance may be permitted between the parts.
The male and female members are so designed with respect to each other that when the male member is fully inserted in the female member the pointed end section 8 of the lancet will project a predetermined distance, usually about 0.5 - 2 mm, out of the female member. In this final and puncturing operative position the pressure plate 7 is in contact with the finger-grip plate 12 or rear end 11. The female member is manufactured of suitable plastîc material, preferably of the same plastic material as the male member.
The medical lancet means also comprises first engaging stop means adapted to temporarily obstruct relative mo~ement of the male and female members s~id stop means comprising a first element arranged on the rod body of the male member at a predetermined distance from the pointed end section 8 of the lancet, and a second element arranged on the female member at a predetermined distance from the front end 14 thereof to engage with said first element. In the embodiments 1 1577~4 shown, the first element consists of the radially prodruding ridge 9. In Figuresl, 2 and 3 the second element consists of a corresponding annular radially inwardly extending ridge 15 on the inner wall or at the entry of the hole 13 in the female member. The ridge 15 of the female member thus forms a constriction of the hole 13 at the entry theTeof so that continued movement of the male member into the female member is prevented, as is illustrated in ~igure 1, since the ridge 9 engages the protrusion 15 of the female member~
~y increasing the pressure with the thumb or other finger on the pressure plate 7 of the male mem~er, this stop is finally overcome so that the male member can be inserted the full length determined by the rod body 3 into the female member, as is illustrated in Figure 2. When this increased pressure is suddenly released by the ridges 9, 15 moving past and out of engagement with each other, the male member acquires an extremely high speed in passing the rest of the distance into the female member until second engaging stop means are reached.
These second stop means thus comprise the pressure plate 7 of the male member and the rear end 11 of the female member. ~his in turn means that the pointed end section 8 of the lancet is pushed out of the female member at a correspond-ingly high speed, rapidly penetrating the skin and the blood vessels beneath. It will be understood that the front end 14 of the female member will be in contact w~th the skin at least from the point when the pressure is increased on the male member a~ter the temporary engagement of the first stop means has been reached.
Since the lancet acquires a high speed upon the sudden release and pushing in of the male member, the pointed end section of the lancet will penetrate the skin extremely quickly. It has been found that, thanks ~o this, the sensation of pain is extremely slight and brief.
The rid~e g on the male member ls placed at a specific point on the rod bod~ 3 so that the distance between the ridge 9 and the pointed end section 8 of the lancet is the same as and preferably slightly less than the distance between the front end 14 of the female member and the stop rldge 15. It is thus ensured that the pointed end section 8 of the lancet will not be visible from the side when the first stop means is temporarily in engagement, provided the female member is made of opaque plastic, which is preferred~ It is believed that it is of great psrchological significance for many patients that the lancet is inv~sible.
~f desired, the female member ma~ be provided with a slit 19 at its rear end 11, to enable the entry to the hole 13 to expand upon application of pressure on the male member. Such an embodiment is illustrated in Figure 3.
The medical lancet means can preferably be made in one piece, the male member and female member being in an integral piece or unit 16 and easily severable from each other at the moment of use. Such a un~t is shown in ~igures4 and 5. The unit is in~ection moulded so that the pointed end section of the lancet is located in the finger-grip plate 12 of the famle member and directed radially therein. A slight twist of the male member will separate this ~rom the female member at the thin and frangible connection 17 which surrounds a small portion of the lancet. The lancet being moulded in this manner, it is completely protected and sterile up to the moment of use and, moreover, by an operative member, i.e. the female member, of the medical lancet means. Thus, no special protection element which must then be discarded, is required for the lancet. In the embod;ment according to Figures 4 and 5, the female member has been provided with three evenly distributed ridges or protusions 1~ for co~peration with the protrusion 9 of the male member to form the first stop means.
~nstead of placing the male and female members at right angles, as 1 1577~4 shown in Pigure 4, they may be moulded to form an elongate unit, the pointed end section of the lancet being enclosed in the finger-grlp plate 12 from above and, if necessary, in extra material under the plate.
The plastic material used for the medical lancet means should be free from foreign substances, for example of a quality approved for foodstuffs. Thus, plasticized organic polymeric compositions, such as a polyvinyl chloride, polyethylene, polypropylene and the like plastic materials, are well suited for moulding the medical lancet means. The lancet is made of special stainless steel~
By means of a special technique it has been found unnecessary to provide the lancet with any grindings, such as grooves or external attachment means which are normal for the attachment of a lancet or other steel object in a plastic body. This new technique entails washing the lancet with alcohol or alcohol solution prior to its automatic insertion in the plastic in~ection moulding tool, and preventing contact of the lancet with fat or oil after washing.
To ensure secure accurate moulding of the lancet into the male member, the injection moulding tool may comprise three radially directed holder elements which support the automatically inserted lancet from two opposite directions, such as from below and above, corresponding radial slits being formed in the moulded male member.
The stop means which act last, i.e. the second stop means which are formed in the embodiments shown by the pressure plate 7 of the male member and the rear end 11 of the female member, may according to an alternative embodiment be formed by the front end 4 of the male member and an inner shoulder or ridge in the female member. The shoulder or ridge is formed by a bottom section in the female member, the hole 13 thereof terminating at a distance from the front end of the female member. A small diameter central hole is made in the bottom section for passage of the pointed end of the lancet.
~ 157724 According to a further embodiment, not shown, the male member is provided w~th a device which prevents the male member from falling out of the female member when the medical lancet means is in its initial position prepared for use. Such a device may comprise a protrusion, ridge, step or similar stop means formed on rod body 3 between front end 4 and ridge 9 and adapted to engage with ridge 15 or 18 of the female member after partial insertion of the male member into the female member.
As mentioned, the lancet may consist of a suitable metal. However, it may also consist of some other suitable material if desired. The lancet may, for instance, consist of a suitable plastic material and according to such an embodiment the lancet is moulded as an integral part of the male member, i.e. of the same plastic material.
Claims (11)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A medical lancet means for puncturing skin comprising a moulded lancet retaining male member having an elongate body with a front end and a rear end, a lancet having a pointed end section projecting axially from said body at the front end thereof, and a female member having an oblong hollow body with a front end, a rear end and an axial hole adapted to receive said body of the male member through the rear end of said hollow body, the female body being of such a length and the lancet so arranged on the male member that the pointed end section of the lancet protrudes a predetermined distance out of the female member at the front end thereof when the male member is inserted in the female member so as to define an operative puncturing position of the medical lancet means, said male and female members comprising first engaging stop means arranged temporarily to prevent continued insertion of the male member at a predetermined initial position of the male member in the female member with the pointed end section of the lancet being located within the female member said first stop means being adapted to release upon application of pressure to the male member, thereby permitting the male member to be pushed into the female member from said initial position to said operative position.
2, A medical lancet means according to claim 1 wherein said hole of the female member is a through hole, and the male and female members comprise second engaging stop means formed by the rear end of the female member and a radial protrusion means on the male member, said second stop means being engaged in said operative position.
3. A medical lancet means according to claim 1, wherein said first stop means comprise a first element arranged on the body of the male member at a predetermined distance from the pointed end section of the lancet, and a second element arranged on the female member at a predetermined distance from the front end thereof to engage with said first element.
4. A medical lancet means according to claim 3, wherein said first element comprises a radial protrusion means.
5. A medical lancet means according to claim 1, wherein the female member is formed with a finger-grip means.
6. A medical lancet means according to claim 3, wherein said second element comprises edge sections about the hole of the female member at said rear end thereof.
7. A medical lancet means according to claim 3, wherein said second element comprises at least one radial protrusion on the wall of the hole in the female member.
8. A medical lancet means according to claim 7, wherein said protrusion is a circumferential ridge.
9. A medical lancet means according to claim 7, wherein said protrusion is arranged at said rear end of the female member.
10. A medical lancet means according to claim 6 or 9, wherein the female member has a slit at said rear end to enable the entrance of the hole to expand upon application of pressure to the male member.
11. A method of manufacturing a medical lancet means according to claim 1 comprising moulding the male member and female member of plastic material in one piece, the lancet being permanently fixed in the male member and the pointed end section of the lancet being enclosed by portions of the female member to be protected thereby until the moment of use when the male member is severed from the female member by a twisting movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000375894A CA1157724A (en) | 1980-04-23 | 1981-04-22 | Medical lancet means |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8003057-0 | 1980-04-23 | ||
| CA000375894A CA1157724A (en) | 1980-04-23 | 1981-04-22 | Medical lancet means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1157724A true CA1157724A (en) | 1983-11-29 |
Family
ID=4119785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000375894A Expired CA1157724A (en) | 1980-04-23 | 1981-04-22 | Medical lancet means |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1157724A (en) |
-
1981
- 1981-04-22 CA CA000375894A patent/CA1157724A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4676244A (en) | Medical lancet | |
| US5059185A (en) | Safety needled medical devices | |
| US4923445A (en) | Safety needled medical devices | |
| US5501672A (en) | Disposable self-shielding hypodermic syringe | |
| CA1324546C (en) | Safety needles medical devices capable of one handed manipulation | |
| US5417660A (en) | Self-locking syringe holder for use with a hypodermic syringe | |
| US5279591A (en) | Protector for needle catheter | |
| AU2003200200B2 (en) | Safety blood collection needle assembly | |
| US5344403A (en) | Simple retractable safety syringe | |
| CA2216448C (en) | Safety stylet for intravenous catheter insertion | |
| US8048031B2 (en) | IV catheter introducer | |
| CA2055158C (en) | Disposable medical needle and catheter placement assembly having full safety enclosure means | |
| US5314503A (en) | Automatic sheath protection of hypodermic needle | |
| US5254100A (en) | Protective needle assembly for hypodermic syringe | |
| US4976702A (en) | Syringe needle guard | |
| US20030060771A1 (en) | Safety catheter | |
| JPH10127767A (en) | Needle assembly provided with needle barrier which can be operated by one hand | |
| US20100160869A1 (en) | Medical Needle Assemblies | |
| EP0583343B1 (en) | Disposable lancet device for puncturing skin | |
| AU2003200292B2 (en) | Needle holder for use with safety needle assembly | |
| EP1126889B1 (en) | Needle assembly | |
| JP3621502B2 (en) | Lancet assembly | |
| AU2004202713A1 (en) | Medical needle assemblies | |
| JP4116770B2 (en) | Protector | |
| CA1157724A (en) | Medical lancet means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |