The image above is missing, but the text describes various species commonly referred to as "otters" or "grasshoppers," which are actually leeches belonging to the Hirudinea class. These creatures are also known by other names such as "Japanese doctor's advice," "wide-body gold thread," and "brown willow leaf." They are not true grasshoppers but rather segmented worms with unique physical and behavioral characteristics.
1. **Japanese Doctor’s Ape (Medical Filer):**
This species has a long, narrow, slightly cylindrical body measuring 3–5 cm in length and 0.4–0.5 cm in width. Its back is black with green and yellow vertical stripes, while its ventral side is gray-green without any variegated patterns. It has 103 body segments, with 15 of them being less distinct. The male gonopores are located between the 31st and 32nd segments, while the female ones are between the 36th and 37th. It has five pairs of eyes, arched in shape, and a small front suction cup on the ventral surface. The esophageal fold is six in number, and the O teeth are well-developed. This leech inhabits paddy fields and swamps, feeding on human and animal blood. It moves using wave-like swimming motions and can regenerate if cut. It is most active in spring and reproduces from June to October.
2. **Wide-Bodied Golden Ray Cricket:**
This species grows longer, reaching 6–13 cm in length and 0.8–2 cm in width. Its body is flat and spindle-shaped, with a dark green back marked by five fine yellow and black vertical lines. The ventral side is pale yellow with irregular green spots. It has 107 body segments, with the male reproductive opening located between the 33rd and 34th segments, and the female one between the 38th and 39th. It lives in rice paddies, rivers, and lakes, feeding on small aquatic organisms like insect larvae, mollusks, and organic matter from the mud.
3. **Brown Willow Frog (Small Oystercatcher):**
Also called the "small oystercatcher," this leech has a broader, more leaf-like body with a brownish-green back and five fine green vertical spots. Its ventral side is pale yellow, and it has scattered dark green spots. It resembles the wide-bodied golden thread cricket in many ways.
**Habitat and Behavior:**
These leeches prefer hard water environments with rocks, shallow aquatic plants, or damp soil along shorelines. They use vegetation for attachment and protection. In winter, when temperatures drop below 10°C, they burrow into the soft soil near water edges to hibernate at depths of 15–25 cm. They emerge when the temperature rises to 10–13°C. They do not reproduce in waters below 11°C. If exposed to 43°C water, they escape; at 45.5°C, they sink, and at 48°C, they die. Clearing their habitat leads to death.
**Reproduction and Environmental Needs:**
Their eggs are laid in moist soil with 30–40% moisture and good air permeability. Too much moisture causes rotting, while too little leads to dehydration, both of which hinder hatching. Leeches can tolerate a wide range of pH levels, from 4.5 to 10.1, making them acid-tolerant. They can survive in low-oxygen environments for several days—up to three days for some species and two days for others.
**Diet:**
Different species have varied diets. Japanese doctors mainly feed on vertebrate blood, including humans, livestock, frogs, and fish. Wide-bodied golden thread leeches and brown willow frogs primarily consume invertebrate fluids, carrion, snails, insects, and organic matter from the water or shore. When raising them, it's important to provide suitable food based on local availability.
Disposable Piercing Guide - WPTC10
Product Description
Disposable surgical medical products refer to items used in surgical operations, which are discarded after one use. These products are used to maintain a sterile environment and prevent the spread of infection during surgery.
Some common disposable surgical medical products include:
1. Surgical masks: used to cover the mouth and nose of medical staff during operations to prevent the spread of germs.
2. Surgical gowns: Medical staff wear these to protect their clothing from contamination during surgery.
3. Surgical Gloves: Healthcare providers wear these gloves to protect their hands from contamination during surgery.
4. Surgical Drape: Used to cover the patient and create a sterile field around the surgical site.
5. Surgical needles: Used to suture incisions and wounds during surgery.
6. Scalpel blades: These are used to make incisions during surgery.
7. Surgical Forceps: Used to grasp and manipulate tissue during surgery.
8. Surgical catheters: These catheters are used to drain fluids from the body during surgery.
Overall, single-use surgical medical products are critical to maintaining a sterile environment and preventing the spread of infection during surgery.
Disposable Use Puncture Guider,All Laparoscopic Instruments,Keyhole Surgery Instruments
Changzhou Weipu Medical Devices Co., Ltd. , https://www.cnweipumedical.com