This standard specifies the classification and naming, requirements, test methods, inspection rules, marking, packaging, transportation and storage of hemostatic forceps. This standard applies to hemostatic forceps used to clamp blood vessels and tissues in the human body for hemostasis. YY/T 0452-2003 Hemostatic forceps YY/T0452-2003 Standard download decompression password: www.bzxz.net

This standard is a revised version of GB2767-1988 "Ordinary Hemostatic Forceps". Compared with GB2767-1988, this standard has the following main technical differences: - The limit deviations of dimensions (L, H) not used for inspection have been deleted - The clamping tension has been cancelled according to GB2766-1995 "General Technical Conditions for Transgillary Hemostatic Forceps". - The locking force value has been cancelled.
This standard will replace GB2767-1988 "Ordinary Hemostatic Forceps" from the date of implementation. This standard is proposed and managed by the National Committee for Standardization of Surgical Instruments. The main drafting unit of this standard: Shanghai Medical Instruments (Group) Co., Ltd. Surgical Instrument Factory. The main drafter of this standard: Zhang Hongxia.
The previous versions of the standards replaced by this standard are: GB 2767-1964, GB 2767-1973, GB 2767-1981, GB 2767-1988. YY/T0452—2003
1 Scope
Hemostatic forceps
YY/T 0452—2003
This standard specifies the classification and naming, requirements, test methods, inspection rules, marking, packaging, transportation and storage of hemostatic forceps. This standard applies to hemostatic forceps used to clamp blood vessels and tissues in the human body for hemostasis. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all dated referenced documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties who reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated referenced documents, the latest versions shall apply to this standard. GB2766---1995 General technical conditions for gill-penetrating hemostatic forceps YY/T0173.3-1994 Gill shaft for surgical instrument forceps YY/T0173.4—1994 Lip hook for surgical instrument Lip tooth for surgical instrument
YY/T 0173.5—1994bZxz.net
Lock tooth for surgical instrument
YY/T0173.6---1994
YY/T0173.8---1994
3 Classification and nomenclature
Oval-shaped finger ring for surgical instruments
3.1 The type and basic dimensions of the forceps shall conform to the requirements of Figures 1, 2 and Table 1. 3.2 The gill shaft of the pliers shall comply with the provisions of YY/T0173.3-1994; the lip hook shall comply with the provisions of YY/T0173.4-1994; the lip teeth shall comply with the provisions of YY/T0173.5-1994; the locking teeth shall comply with the provisions of YY/T0173.6-1994; the egg-shaped finger ring shall comply with the provisions of YY/T0173.8--1994. +1
Straight without hook
Figure 1 Hemostatic forceps (straight and curved without hook)
YY/T0452—2003
Straight with hook
Figure 2 Hemostatic forceps (straight and curved with hook)
Curved with hook
Ordinary hemostatic forceps
Straight without hook
Table 1 Basic dimensions
H Name
2.2±0.20
3.2±0.24
2.2±0.20
3.2±0.24
4 Requirements
4.1 Disengagement force
3.2±0.24
The disengagement force of the forceps should not be less than 6N.
4.2 Head end swing amount
Hemostatic forceps
Hemostatic forceps
Straight without hook
Curved without hook
Straight with hook
Curved with hook124.5
Curved without hook
Tonsil
Hemostatic forceps
Straight without hook
Hemostatic forceps to
Curved without hook
Microvascular
Hemostatic forceps
Straight without hook
Curved without hook124.5
YY/T0452—2003
Unit is mm
When the locking teeth of the hookless forceps are all disengaged and the two pieces of the head end are 0.5mm apart, the total head end swing amount caused by the swinging finger ring should not be greater than that in Table 2 Regulations
Table 2 Swing amount
Total length of forceps
Total value of swing amount
4.3 Elasticity and firmness test
160~180
Unit: mm
200~250
Put a brass rod with a diameter equal to 5% of the length (l) from the tip of the forceps to the center of the gill axis (mosquito hemostatic forceps, pediatric hemostatic forceps: 1mm; microvascular hemostatic forceps YY/T0452--2003
0.5mm) at the front end of the head, lock all the locking teeth, and then relax, repeat 2 to 3 times, the forceps should not be deformed or broken.
4.4 Other performance
The remaining requirements of the forceps should comply with the provisions of GB2766-1995. Test method
The test method of pliers shall comply with the provisions of Chapter 4 of GB2766-1995. 6 Inspection rules
The inspection rules of pliers shall comply with the provisions of Chapter 5 of GB2766-1995. Note: The items to be inspected shall correspond to the items in Chapter 3 of GB2766-1995. 7 Marking
The marking of pliers shall comply with the provisions of Chapter 6 of GB2766-1995. 8 Packaging, transportation and storage
The packaging, transportation and storage of pliers shall comply with the provisions of Chapter 7 of GB2766-1995. 9 Others
After packaging, pliers shall be guaranteed not to rust within one and a half years under the condition of complying with the storage rules.
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